id,key,short,full,url
104,aap,AAP,Australian Associated Press,
81,aec,AEC,Australian Electoral Commission,http://www.aec.gov.au/
69,afp,AFP,Agence France-Presse,
118,ana,ANA,Athens News Agency (ANA),https://www.amna.gr/en
204,ansa,ANSA,ANSA (Agenzia Nazionale Stampa Associata),http://www.ansa.it/
77,ap,AP,Associated Press,
192,apa,APA,APA – Austria Presse Agentur (Austria Press Agency),http://www.historisch.apa.at/cms/apa-historisch/start.html
186,ageu,Agence Europe,Agence Europe,http://www.agenceurope.com/EN/index.html
166,ager,Agerpres,Agenția Română de Presă (Romanian Press Agency),http://www.agerpres.ro/
174,alth,Alþýðublaðið,Alþýðublaðið (The People's Paper),http://timarit.is/
175,asl,Annuaire statistique,Annuaire statistique du Luxembourg (Statistical Yearbook of Luxembourg),
19,archivio,Archivio Storico delle Elezioni ,Archivio Storico delle Elezioni (Historical Election Archive) – Ministero dell'Interno (Interior ministry),http://elezionistorico.interno.it/
227,asn,Assemblée Nationale,Assemblée Nationale (French National Assembly),http://www.assemblee-nationale.fr/elections/histoire.asp
94,aph,Australian Parliamentary Handbook,Parliamentary Handbook of the Commonwealth of Australia,http://www.aph.gov.au/library/handbook/
231,ape-db,Australian Politics and Elections Database,Australian Politics and Elections Database,http://elections.uwa.edu.au/
197,aufo,Austria-Forum,Austria Forum - Das österreichische Wissensnetz,http://austria-lexikon.at/af/Austria-Forum
60,bbc,BBC News,BBC News Online,http://news.bbc.co.uk/
276,bbcm,BBCM,BBC Monitoring,https://monitoring.bbc.co.uk/
240,bns,BNS,Baltic News Sevice,http://www.bns.ee/en/
187,bta,BTA,Bulgarian News Agency (BTA),http://www.bta.bg/en/
143,barber,Barber ea. (2008),"Barber, Stephen, Christopher Lawley, Scott Bennett, and Gerard Newman. 2008. Federal election results 1901–2007. Parliament of Australia – Parliamentary Library.",http://www.aph.gov.au/library/pubs/rp/2008-09/09rp17.pdf
285,belga,Belga,Agence Belga,
1,benoit,Benoit and Laver (2006),"Benoit, Kenneth, and Michael Laver. 2006. Party policy in modern democracies. Routledge.",http://www.politics.tcd.ie/ppmd/
259,berg-93,Bergman (1993),"Bergman, Torbjörn. 1993. ""Constitutional Design and Government Formation: The Expected Consequences of Negative Parliamentarism."" Scandinavian Political Studies 16(4): 285-304.  ",
280,berg-19,Bergman ea. (2019),"Bergman, Torbjörn, Gabriella Ilonszki, and Wolfgang C. Müller, eds. 2019. Coalition Governance in Central Eastern Europe. Oxford, New York: Oxford University Press.
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284,bbe-21,Bergman ea. 2021,"Bergman, Torbjörn, Hanna Back, and Johan Hellström, eds. 2021. Coalition Governance in Western Europe. Oxford, New York: Oxford University Press.",
245,be-70,Beyme (1970),"Beyme, Klaus von. 1970. Die parlamentarischen Regierungssysteme in Europa. München: R. Piper & Co. Verlag.
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36,bec,Biroul Electoral Central ,Biroul Electoral Central  (Central Election Bureau Romania),http://www.bec2009pe.ro/
82,bb,Bloomberg,Bloomberg,http://www.bloomberg.com
252,boix-2013,Boix ea. (2013),"Boix, Carles, Michael Miller, and Sebastian Rosato. 2013. “A Complete Data Set of Political Regimes, 1800–2007.” Comparative Political Studies 46(12):1523–54.",https://sites.google.com/site/mkmtwo/data
156,boe,Boletín Oficial del Estado (BOE),Boletín Oficial del Estado (Official Bulletin of the State),http://www.boe.es/
41,craig,British Electoral Facts 1989,"Craig, Fred. 1989. British electoral facts, 1832-1987. Aldershot: Gower.",
88,bef-7,British Electoral Facts 2006,"Thrasher, Michael, and Colin Rallings. 2009. British electoral facts. Total Politics.",
139,bpf,British Political Facts,"Butler, David, and Gareth Butler. 2010. British political facts. 10th ed. Palgrave Macmillan.",
6,cmp,Budge ea. (2001) and Klingemann ea. (2006),"Budge, Ian, Hans-Dieter Klingemann, Andrea Volkens, Judith Bara, and Eric Tanenbaum. 2001. Mapping Policy Preferences: Estimates for Parties, Electors, and Governments 1945-1998. Oxford: Oxford University Press.;

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190,buga,Bugajski (2002),"Bugajski, Janusz. 2002. Political parties of eastern europe: a guide to politics in the post-communist era. M.E.Sharpe.",
150,bafs,Bundesamt für Statistik,Schweizerische Eidgenossenschaft - Bundesamt für Statistik (Statistical Office of Switzerland),https://www.bfs.admin.ch/bfs/de/home.html
189,bka,Bundeskanzleramt,Bundeskanzleramt (Federal Chancellery),http://www.bka.gv.at/
28,bmi,Bundesministerium für Inneres,Bundesministerium für Inneres (Federal Ministry for the Interior) – Österreichische Bundeswahlbehörde (Austrian Federal Electoral Board),http://www.bmi.gv.at/cms/BMI_wahlen/
162,buv,Bundesversammlung,Die Bundesversammlung - Das Schweizer Parlament  (The Federal Assembly - The Swiss Parliament),http://parlament.ch/
7,bwl,Bundeswahlleiter,Bundeswahlleiter (Federal Returning Officer) – Statistisches Bundesamt (Federal Statistical Office of Germany),http://www.bundeswahlleiter.de/
235,cbs-isr,CBS,Israel Central Bureau of Statistics,http://www.cbs.gov.il/reader/?MIval=cw_usr_view_SHTML&ID=445
98,cbs,CBS StatLine,Centraal Bureau voor de Statistiek – StatLine databank (Statistics Netherlands – StatLine database),http://statline.cbs.nl/
279,cec,CEC,Central Elections Committee,https://www.bechirot.gov.il/
54,cevipol,CEVIPOL,CEVIPOL Ressources –  Electoral results,http://dev.ulb.ac.be/cevipol/en/elections.html
268,chisols,CHISOLS dataset,"Mattes, Michaela, Brett Ashley Leeds, and Naoko Matsumura. 2016. “Measuring Change in Source of Leader Support: The CHISOLS Dataset.” Journal of Peace Research 53(2): 259–67.",http://www.chisols.org/
84,cik,CIK,Centralna Izbiratelna Komisija (Bulgarian Central Election Commission),http://portal.cik.bg/
179,clea-11,CLEA,"Ken Kollman, Allen Hicken, Daniele Caramani, and David Backer. Constituency-Level Elections Archive (CLEA; www.electiondataarchive.org), September 14, 2011 [dataset]. Ann Arbor, MI: University of Michigan, Center for Political Studies [producer and distributor]. ",http://www.electiondataarchive.org/
76,cp,CP,The Canadian Press – La Presse Canadienne,
167,cdep,Camera Deputaţilor,Camera Deputaţilor (Chamber of Deputies),http://www.cdep.ro/
230,camera,Camera dei deputati,Camera dei deputati ,http://www.camera.it/
2,castles,Castles and Mair (1984),"Castles, Francis G. and Peter Mair. 1984. “Left-right political scales: Some ‘expert’ judgements.” European Journal of Political Research 12(1):73–88.",
35,cvk,Centrālā vēlēšanu komisija,Centrālā vēlēšanu komisija (Central Election Commission Latvia),https://www.cvk.lv/en
4,ches,Chapel Hill expert survey series,"Chapel Hill expert survey series (CHES):
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144,ceoc,Chief Electoral Officer of Canada,"Chief Electoral Officer of Canada
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248,chr-08,Christiansen and Damgaard (2008),"Christiansen, Flemming Juul and Erik Damgaard. 2008. “Parliamentary Opposition under Minority Parliamentarism: Scandinavia.” The Journal of Legislative Studies 14(1-2):46–76.
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33,cne,Comissão Nacional de Eleições,CNE – Comissão Nacional de Eleições (Portuguese National Election Commission),http://eleicoes.cne.pt/
72,conrad,Conrad and Golder (2010),"Conrad, Courtenay R., and Sona N. Golder. 2010. “Measuring government duration and stability in Central Eastern European democracies.” European Journal of Political Research 49(1):119–150.",
92,corriere,Corriere,Corriere della Sera,http://www.corriere.it/english/
136,cymail,Cyprus Mail,Cyprus Mail,http://www.cyprus-mail.com/
233,dr,DR,DR (Danish Broadcasting Corporation),http://www.dr.dk/Nyheder/Andre_sprog/English/
291,dnse,Dagens Nyheter,Dagens Nyheter,https://www.dn.se/
182,da-08,Dalton (2008),"Dalton, Russell J. 2008. “The quantity and the quality of party systems: Party system polarization, its measurement, and its consequences.” Comparative Political Studies 41(7):899–920.",
24,valgside,Danmarks Statistik valgside,Danmarks Statistik valgside (Statistics Denmark election page),http://www.dst.dk/valg
120,dsd,Danske Encyklopædi,Den Store Danske Encyklopædi (The Great Danish Encyclopedia),http://www.denstoredanske.dk/
93,dhbt,Datenhandbuch Bundestag,"Datenhandbuch zur Geschichte des Deutschen Bundestages
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148,dw,Deutsche Welle,Deutsche Welle,"http://www.dw-world.de/dw/0,,266,00.html?id=266"
214,eie,DoE Ireland,Department of Environment Ireland,http://www.environ.ie/en/LocalGovernment/Voting/
256,dj,Dow Jones Institutional News,Dow Jones Institutional News,
296,dr-08,Druckman and Roberts (2005),"Druckman, James N., and Andrew Roberts. 2008. “Measuring Portfolio Salience in Eastern European Parliamentary Democracies.” European Journal of Political Research 47(1): 101–34.
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295,dw-05,Druckman and Warwick (2005),"Druckman, James N., and Paul V. Warwick. 2005. “The Missing Piece: Measuring Portfolio Salience in Western European Parliamentary Democracies.” European Journal of Political Research 44(1): 17–42.",
38,voltive,Državna volilna komisija,Državna volilna komisija (National Electoral Commission Slovenia),http://volitve.gov.si/en/
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123,eed,EED,European Election Database,http://www.nsd.uib.no/european_election_database/index.html
87,ees,EES (2009),"European Parliament Election Study 2009, Voter Study, Advance Release, 30/06/2010.",http://www.piredeu.eu/
17,ejpr,EJPR Yearbook,European Journal of Political Research: Political Data Yearbook,
176,elta,ELTA,Lietuvos naujienų agentūra (Lithuanian News Agency),https://www.elta.lt/en
283,emw,EMW,EmergingMarketWatch,https://emergingmarketwatch.com/
21,ep,EP election report,European Parliament (EP) election report (based on official statistics),
249,epe-rp,EPE - HoC Library,European Parliament Elections – House of Commons Library,http://www.parliament.uk/
106,err,ERR,Eesti Rahvusringhääling (Estonian Public Broadcasting),http://news.err.ee/
43,euprofiler,EU Profiler,"Trechsel, Alexander H., and Peter Mair. 2009. “When Parties (also) Position Themselves: An Introduction to the EU Profiler.” EUI - RSCAS 2009/65; EUDO - European Union Democracy Observatory.",http://dvn.eudo.eu/dvn/dv/euprofiler/
281,euobs,EUobserver,EUobserver,https://euobserver.com/
127,edu,Eduskunta,Eduskunta – Riksdagen (Parliament of Finland),http://web.eduskunta.fi/Resource.phx/parliament/index.htx
121,elpais,El País,El País,http://www.elpais.com/english/
90,epp,Elecciones y Partidos Políticos,Elecciones y Partidos Políticos (Elections and Political Parties in Spain),http://www.infoelectoral.mir.es/
213,er,Election Resources,"Álvarez-Rivera, Manuel – Election Resources",http://www.electionresources.org/
138,hcl-rp,Election Statistics: UK 1918-2007,"Election Statistics: UK 1918-2007 – Research Paper 08/12 – House of Commons Library
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262,eg,ElectionGuide,Election Guide: Democracy assistance and election news,http://www.electionguide.org/
46,doi,Elections in Malta,Elections in Malta – Department of Information – Government of Malta,http://www.doi.gov.mt/EN/elections/
238,elec-irl,ElectionsIreland.org,ElectionsIreland.org,https://electionsireland.org/
112,ec,Electoral Commission,The Electoral Commission (United Kingdom),http://www.electoralcommission.org.uk/
155,ec-nz,Electoral Commission,Electoral Commission (New Zealand) ,http://www.electionresults.govt.nz/
261,ecm,Electoral Commission Malta,Electoral Commission of Malta,https://electoral.gov.mt/Elections
70,es,Electoral Studies,Electoral Studies – Notes on Recent Elections,http://www.sciencedirect.com/science/journal/02613794
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237,flora-83,Flora (1983),"Flora, Peter. 1983. State, Economy, and Society in Western Europe 1815-1975: A Data Handbook in Two Volumes -- Volume I: The Growth of Mass Democracies and Welfare States. Frankfurt a.M.: Campus Verlag.",
20,folketing,Folketing,Folketing election results and governments,http://www.folketinget.dk/
241,frpo,France Politique,France Politique,http://www.france-politique.fr/
184,gall-91,Gallagher (1991),"Gallagher, Michael. 1991. “Proportionality, disproportionality and electoral systems.” Electoral Studies 10(1):33–51.",
220,gall-09,Gallagher (2009),"Gallagher, Michael. 2009. Irish elections 1948-77: Results and analysis. Sources for the study of Irish politics 2. London. Routledge.",
260,gall-11,Gallagher (2011),"Gallagher, Michael and Michael Marsh. 2011.How Ireland Voted 2011: the full story of Ireland's earthquake election. Basingstoke. Palgrave Macmillan.",
181,ga-mi-05,Gallagher and Mitchell (2005),"Gallagher, Michael, and Paul Mitchell, eds. 2005. The politics of electoral systems. Oxford: Oxford University Press.",
263,gu,Guardian,The Guardian,https://www.theguardian.com/international
173,gud97,Guðmundur and Magnússon (1997),"Guðmundur, Jónsson, and Magnús S. Magnússon. 1997. Hagskinna : sögulegar hagtölur um Ísland -- Icelandic historical statistics. Reykjavík: Hagstofa Íslands.",
222,hina,HINA,HINA – Hrvatska izvještajna novinska agencija (Croatian News Agency),http://www.hina.hr/
272,hp,Haber Turk,Haber Turk,https://www.haberturk.com/
18,hagstofa,Hagstofa Íslands,Hagstofa Íslands (Statistics Iceland),http://www.statice.is/Statistics/Elections
149,his,Historisches Lexikon,Historisches Lexikon der Schweiz (Historical Dictionary of Switzerland),http://www.hls-dhs-dss.ch/index.php
50,hix,Hix ea. (2007),"Hix, Simon, Abdul G. Noury, and Gérard Roland. 2007. Democratic Politics in the European Parliament. Cambridge: Cambridge University Press.",http://personal.lse.ac.uk/hix/HixNouryRolandEPdata.htm
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170,hug-77,Hughes (1977),"Hughes, Colin. 1977. A handbook of Australian government and politics, 1965-1974. Canberra: Australian National University Press.",
171,hug-86,Hughes (1986),"Hughes, Colin. 1986. A handbook of Australian government and politics, 1975-1984. Sydney ;New York: Australian National University Press.
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169,hug-68,Hughes and Graham (1968),"Hughes, Colin, and Bruce D. Graham. 1968. A handbook of Australian government and politics, 1890-1964. Canberra: Australian National University Press.",
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44,ibz,IBZ,IBZ – Federale Overheidsdienst Binnenlandse Zaken – Service public fédéral Intérieur – Föderaler Öffentlicher Dienst Inneres,http://www.ibzdgip.fgov.be/
217,izbori,IZBORI,Dzavno Izborno Povjerenstvo Republike Hrvatske - State Electoral Commission of Croatia,http://www.izbori.hr/izbori/dip_ws.nsf/public/index?open
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200,insse,Institutul National de Statistica,Institutul National de Statistica (National Institute of Statistics Romania),http://www.insse.ro/cms/rw/pages/index.en.do
11,idea,International IDEA,International Institute for Democracy and Electoral Assistance (International IDEA),http://www.idea.int/vt/
89,iris,Iris Oifigiúil,Iris Oifigiúil (Irish State News),http://www.irisoifigiuil.ie/
224,irti,Irish Times,The Irish Times,http://www.irishtimes.com/
243,jta,JTA,Jewish Telegraphic Agency (JTA),http://www.jta.org/jta-archive/archive-page
253,vow,Jack Vowles,Jack Vowles New Zealand Elections Data,
97,jacobs,Jacobs (1989),"Jacobs, Francis, ed. 1989. Western European political parties : a comprehensive guide. Harlow, Essex, UK: Longman.",
145,jiji,Jiji Press,Jiji Press English News Service,http://jen.jiji.com/
147,knr,Kalaallit Nunaata Radio,Kalaallit Nunaata Radio (Greenlandic Broadcasting Corporation),http://www.knr.gl/en
202,kath,Kathimerini,Kathimerini (Η Καθημερινή),http://www.ekathimerini.com/
194,kato-08,Kato and Kannon (2008),"Kato, Junko, and Yuto Kannon. 2008. “Coalition Governments, Party Switching, and the Rise and Decline of Parties: Changing Japanese Party Politics since 1993.” Japanese Journal of Political Science 9(3):341–365.
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58,keesings,Keesing's,Keesing's record of world events,http://www.keesings.com/
66,kiesraad,Kiesraad,Kiesraad (Electoral Council Netherlands) ,http://www.kiesraad.nl/
234,knesset,Knesset,Knesset Elections Results,http://www.knesset.gov.il/description/eng/eng_mimshal_res.htm
193,koh-97,Kohno (1997),"Kohno, Masaru. 1997. Japan’s postwar party politics. Princeton, NJ: Princeton University Press.
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146,kvf,Kringvarp Føroya,"Kringvarp Føroya (Broadcasting Corporation Faeroe Islands, Denmark)",http://www.kringvarp.fo/
131,kyodo,Kyodo,Kyodo News,http://english.kyodonews.jp/
152,leta,LETA,Nacionālā ziņu aģentūra LETA (National News Agency LETA),http://www.leta.lv/eng/index.php
185,la-ta-79,Laakso and Taagepera (1979),"Laakso, Markku, and Rein Taagepera. 1979. “Effective number of parties: Measure with application to West Europe.” Comparative Political Studies 12(1):3–27.",
219,lis,Landskjörstjórn,Landskjörstjórn - National Electoral Commission Iceland,http://www.landskjor.is/
79,lo,Latvians Online,Latvians Online,http://latviansonline.com/
177,lij-94,Lijphart (1994),"Lijphart, Arend. 1978. “The Dutch electoral system in comparative perspective: extreme proportional representation, multipartism, and the failure of electoral reform.” The Netherlands’ Journal of Sociology 14:115–133.",
207,lt,Lithuania Tribune,The Lithuania Tribune,http://www.lithuaniatribune.com/
216,mdi,MDI,Ministero dell'Interno - Ministry of Internal Affairs (Italy),http://elezioni.interno.it/
125,mic,MIC,Ministry of Internal Affairs (Japan),http://www.soumu.go.jp/senkyo/senkyo_s/data/index.html
273,mmc,MMC,"RTV Slowenien öffentliche Institution, Kolodvorska 2, Ljubljana, Slowenien ",http://www.rtvslo.si/
242,mti-eco,MTI-Eco,MTI-Econews,http://www.mtieco.hu/Pages/Login.aspx?lang=eng
208,macr-85,Mackie and Craig (1985),"Mackie, Thomas, and Fred W. S Craig. 1985. Europe votes 2: European Parliamentary election results 1979-1984. 2nd ed. West Sussex, UK: Parliamentary Research Services.",
209,macr-90,Mackie and Craig (1990),"Mackie, Thomas, and Fred W. S Craig. 1990. Europe votes 3: European Parliamentary election results 1989. 2nd ed. Aldershot, UK: Dartmouth Publishing Company Limited.",
8,mackie,Mackie and Rose (1991),"Mackie, Thomas, and Richard Rose. 1991. The international almanac of electoral history. Washington D.C.: Congressional Quarterly.",
165,mchale,McHale (1983),"McHale, Vincent E., ed. 1983a. Political Parties of Europe: Albania -- Norway. Greenwood Press.;

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27,mep,Members European Parliament,Members of the European Parliament (www.europarl.europa.eu),http://www.europarl.europa.eu/members/archive/alphaOrder.do?language=EN
257,mi,Ministerio del Interior,Ministerio del Interior (Ministry of Internal Affairs),http://www.interior.gob.es/
201,mig,Ministry of Interior (Greece),Hellenic Republic - Ministry of Interior,http://www.ypes.gr/en/Elections/
212,epl,Ministère de l'Intérieur (Luxembourg),Ministère de l'Intérieur - Le site officiel des élections au Grand-Duché de Luxembourg (Ministry of internal affairs - Official election results of Luxembourg),http://www.elections.public.lu/fr/index.html
109,mp,Monitor Polski,Monitor Polski,http://monitorpolski.gov.pl/
141,morgan,Morgan (1976),"Morgan, Michael-John. 1976. “The modelling of governmental coalition formation: A policy-based approach with interval measurement.” Dissertation, University of Michigan.",
142,mbl,Morgunblaðið,Morgunblaðið (The Morning Paper),http://www.mbl.is/mm/frettir/english/
10,mueller,Müller and Strøm (2000),"Müller, Wolfgang C., and Kaare Strøm, eds. 2000. Coalition governments in Western Europe. Oxford University Press.",
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195,nzpa,NZPA,New Zealand Press Association,http://www.nzpa.co.nz/
62,nzz,NZZ,Neue Zürcher Zeitung,http://www.nzz.ch/
59,nyt,New York Times (NYT),New York Times Article Archive,http://query.nytimes.com/search/
160,nz-parl,New Zealand Parliament,New Zealand Parliament,http://www.parliament.nz/
133,yb-nzl,New Zealand Yearbook,New Zealand Official Yearbook,
117,no-2010,Nohlen and Stöver (2010),"Nohlen, Dieter, and Philip Stöver, eds. 2010. Elections in Europe: A data handbook. Baden-Baden:Nomos.",
99,no-2001,Nohlen ea. (2001),"Nohlen, Dieter, Florian Grotz, and Christof Hartmann, eds. 2001. Elections in Asia and the Pacific: A data handbook. Oxford University Press.",
178,no-2005,Nohlen ea. (2005),"Nohlen, Dieter, ed. 2005. Elections in the Americas: A data handbook. Oxford University Press.",
49,ark,Northern Ireland Elections,Nicholas Whyte – Northern Ireland Elections,http://www.ark.ac.uk/elections/
39,ovb,Országos Választási Bizottság,Országos Választási Bizottság (National Election Committee Hungary),http://www.valasztas.hu/
247,pacn,PACN,PACN – Pacific News Agency Service,
12,parline,PARLINE IPU,Inter-Parliamentary Union's database on national parliaments (PARliaments onLINE),http://www.ipu.org/parline/
244,pa-84,Paloheimo (1984),"Paloheimo, Heikki. 1984. Governments in Democratic Capitalist States 1950-1983: A Data Handbook. Turku: University of Turku, Department of Sociology and Political Science.",
55,parlgov,ParlGov database (Döring ea. 2023),"Döring, Holger, Constantin Huber, Philip Manow, Maike Hesse and Alexandra Quaas. 2023. Parliaments and governments database (ParlGov): Information on parties, elections and cabinets in established democracies.",http://www.parlgov.org/
52,pica,ParlInfo Canada,ParlInfo – Parliament of Canada,http://www2.parl.gc.ca/parlinfo
198,papo,Parlement & Politiek,Parlement & Politiek,http://www.parlement.com/
287,psp,Parliament Czechia ,Parliament of the Czech Republic — Chamber of Deputies,https://www.psp.cz/
172,aph-11,Parliamentary Handbook of Australia (2011),Parliamentary Library 2011: 43rd Parliament. Parliamentary Handbook of the Commonwealth of Australia 2011.,http://www.aph.gov.au/About_Parliament/Parliamentary_Departments/Parliamentary_Library/~/media/05%20About%20Parliament/54%20Parliamentary%20Depts/544%20Parliamentary%20Library/Handbook/43rd_PH_complet
95,phb,Parteien-Handbuch,"Stöss, Richard. 1986. Parteien-Handbuch: Die Parteien der Bundesrepublik Deutschland, 1945-1980. Sonderausgabe. Opladen: Westdeutsche Verlag.",
205,pav-03,Pavel and Huiu (2003),"Pavel, Dan, and Iulia Huiu. 2003. “Nu putem reuși decît împreună” O istorie analitică a Convenției Democratice, 1989-2000. Iași: Polirom.
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56,pkw,Państwowa Komisja Wyborcza ,"Państwowa Komisja Wyborcza (National Election Commission, Poland)",http://www.pkw.gov.pl/
239,pnbbae,Polish News Bulletin,Polish News Bulletin,http://www.pnb.pl/
225,sonntag,Politica,"Lars Sonntag: Politica – Governments, elections and party leaders",http://www.kolumbus.fi/taglarsson/
151,pol-hu,Politics.hu,Politics.hu,http://www.politics.hu/
196,polityka,Polityka,Polityka,http://www.polityka.pl/
91,pr,Polskie Radio,Polskie Radio (Polish Radio),http://www.thenews.pl
199,fragov,Portail du Government,Portail du Government -- (French Government),http://www.gouvernement./
258,prz-13,Przeworski (2013),"Przeworski, Adam. 2013. “Political Institutions and Political Events (PIPE) Data Set. Department of Politics, New York University.”",https://sites.google.com/a/nyu.edu/adam-przeworski/home/data
277,qin,Qinersineq - valg.gl,Qinersineq,https://www.valg.gl/
67,rferl,RFE/RL,Radio Free Europe / Radio Liberty,http://www.rferl.org/
83,rnw,RNW,Radio Netherlands Worldwide,http://www.rnw.nl/english/
264,rnz,RNZ,Radio New Zealand,http://www.radionz.co.nz/
103,rte,RTÉ,Raidió Teilifís Éireann,http://www.rte.ie/
293,sr,Radio Sweden,Sveriges Radio – Radio Sweden,https://sverigesradio.se/radiosweden
45,ray,Ray (1999),"Ray, Leonard. 1999. “Measuring party orientations towards European integration: Results from an expert survey.” European Journal of Political Research 36(2):283–306.",http://www.lsu.edu/faculty/lray2/data/data.html
80,reg-se,Regeringen,Regeringens och Regeringskansliets (Swedish Government and the Government Offices),http://www.regeringen.se/
134,rpv,Registrera partibeteckning,Registrera partibeteckning – Valmyndigheten (Registered parties – Swedish Election Authority),http://www.val.se/det_svenska_valsystemet/partier/registrera_partibeteckning/
116,reg-no,Regjeringen,Regjeringen (Norway's Governments),https://www.regjeringen.no/en/the-government/previous-governments/
128,rpfi,Rekisteröidyt puolueet,Rekisteröidyt puolueet – Registrerade partier (Registered parties Finland),http://www.vaalit.fi/15485.htm
65,reuters,Reuters,Reuters,http://www.reuters.com
96,ro,Rijksoverheid,Rijksoverheid (Dutch government),https://www.rijksoverheid.nl/regering/inhoud/over-de-regering/kabinetten-sinds-1945
78,riksdag,Riksdag,Sveriges Riksdag,http://www.riksdagen.se/
286,riksdagen,Riksdagen,Riksdagen,
13,rokkan,Rokkan and Meyriat (1969),"Rokkan, Stein, and Jean Meyriat, eds. 1969. International guide to electoral statistics. The Hague, Paris: Mouton.",
9,rose,Rose and Munro (2003),"Rose, Richard, and Neil Munro. 2003. Elections and parties in new European democracies. Washington D.C.: CQ Press.",
47,ref,Résultats électoraux en France,Résultats électoraux en France (Election results France) – Ministère de l'Intérieur (Minister of the Interior),https://www.interieur.gouv.fr/Elections/
188,sita,SITA,SITA Slovenska Tlacova Agentura (Slovak News Agency),http://www.sita.sk/eng/
114,sta,STA,Slovenska tiskovna agencija (Slovenian Press Agency),http://www.sta.si/en/
74,stt,STT,Suomen Tietotoimisto (Finnish News Agency),http://www.stt.fi/en/
267,vs14,Schröder (2014),"Schröder, Valentin and Philip Manow. 2014. Is negative parliamentarism sometimes no parliamentarism after all? Evidence on tiered systems of power separation from the Weimar Republic, 1920–1933. 42nd ECPR Joint Sessions of Workshops, University of Salamanca, Spain, 13.04.2014.",
75,swiss,Schweizerische Eidgenossenschaft,Schweizerische Eidgenossenschaft (The Federal Authorities of the Swiss Confederation),http://www.admin.ch/
63,sejm,Sejm RP,"Sejm Rzeczpospolitej Polskiej (Parliament of the Republic Poland, first chamber)",http://www.sejm.gov.pl/
223,skja,Skjæveland (2003),"Skjæveland, Asbjørn. 2003. ‘Government Formation in Denmark 1953-1998’. Aarhus: Forlaget Politica.",
68,spectator,Slovak Spectator,The Slovak Spectator,http://spectator.sme.sk/
124,sna,Sofia News Agency,Sofia News Agency,http://www.novinite.com/
250,sb-jpn,Statistics Bureau Japan,Statistics Bureau Japan,http://www.stat.go.jp/english/data/chouki/27.htm
101,yb-aut,Statistisches Jahrbuch Österreich,Statistisches Jahrbuch Österreich (Statistical Yearbook of Austria),http://www.statistik.at/web_en/publications_services/statistisches_jahrbuch/index.html
25,seby,Statistisk sentralbyrå,Statistisk sentralbyrå (Statistics Norway),http://www.ssb.no/stortingsvalg_en/
85,yb-dnk,Statistisk Årbog,Statistisk Årbog (Statistical Yearbook of Denmark),http://www.dst.dk/aarbogsarkiv
113,yb-nor,Statistisk Årbok,Statistisk Årbok  (Statistical Yearbook of Norway),http://www.ssb.no/english/yearbook/aarbok.html
86,yb-swe,Statistisk årsbok,Statistisk årsbok för Sverige (Statistical Yearbook of Sweden),http://www.scb.se/Pages/List____283991.aspx
71,su,Statistični urad,Statistični urad Republike Slovenije (Statistical Office of the Republic of Slovenia),http://www.stat.si/eng/
129,snl,Store norske leksikon,Store norske leksikon (Great Norwegian encyclopedia),http://snl.no/
130,storting,Stortinget,Stortinget (Norwegian Parliament),http://www.stortinget.no/en/In-English/
115,nos-sv,Stortingsvalget,Norges Offisielle Statistikk – Stortingsvalget (Norwegian Official Statistics – Storting Election),
132,suj-02,Sundberg (2002),"Sundberg, Jan. 2002. “The electoral system of Finland: Old, and working well.” In The evolution of electoral and party systems in the Nordic countries. New York: Agathon Press, p 67-100.",
135,sos,Sveriges officiella statistik,Sveriges officiella statistik – Statistiska centralbyrån (Official Statistics of Sweden – Statistics Sweden),
137,sva-85,Svåsand(1985),"Svåsand, Lars. 1985. Politiske partier. Oslo: Tiden Norsk Forlag.",
157,sw-in,Swissinfo,Swissinfo – Swiss Broadcasting Corporation,http://www.swissinfo.ch/eng/index.html
228,senat,Sénat,Sénat – French Senate,http://www.senat.fr/lng/en/index.html
180,taag-97,Taagepera (1997),"Taagepera, Rein. 1997. “Effective number of parties for incomplete data.” Electoral Studies 16(2):145–151.",
183,taag-89,Taagepera and Shugart (1989),"Taagepera, Rein, and Matthew Soberg Shugart. 1989. Seats and votes: The effects and determinants of electoral systems. Yale University Press.",
226,tagbla,Tageblatt,Tageblatt,http://www.tageblatt.lu/
164,teara,Te Ara,Te Ara: The Encyclopedia of New Zealand,http://www.teara.govt.nz/
251,tce,The Canadian Encyclopedia,The Canadian Encyclopedia,http://www.thecanadianencyclopedia.com/en/
218,glob,The Globe and Mail,The Globe and Mail,http://www.theglobeandmail.com/
265,local,The Local,The Local (various countries),https://www.thelocal.com/
275,tlse,The Local Sweden,The Local Europe AB - Sweden,https://www.thelocal.se/
158,nzhe,The New Zealand Herald,The New Zealand Herald,http://www.nzherald.co.nz/
102,times,The Times,The Times,http://archive.timesonline.co.uk/tol/archive/
14,tila,Tilastokeskus,Tilastokeskus – Statistikcentralen (Statistics Finland),http://www.stat.fi/til/vaa_en.html
153,tom,Times of Malta,Times of Malta,http://www.timesofmalta.com/
126,toer68,Törnudd (1968),"Törnudd, Klaus. 1968. The electoral system of Finland. London: Hugh Evelyn.",
270,tcd,Trinity College Dublin,"Trinity College Dublin, The University of Dublin",https://www.tcd.ie/
271,tc,Trinity College Dublin,"Trinity College Dublin, The University of Dublin",https://www.tcd.ie/
232,tuik,TÜİK,TÜİK Türkiye İstatistik Kurumu (Turkish Statistical Institute),http://www.turkstat.gov.tr/Start.do
51,ukeu,UK Office of the European Parliament,The United Kingdom Office of the European Parliament.,http://www.europarl.org.uk/section/european-elections/european-elections
221,urwin,Urwin (1970),"Urwin, Derek W. 1970. Elections in Western Nations, 1945-1968. Strathclyde.",
229,valg,VALG,Kommunal- OG Regionaldepartementet - Stortingsvalget (Elections to the Storting),http://www.valgresultat.no/bss.html
110,vaalit,Vaalit,Vaalit – Oikeusministeriö (Elections – Ministery of Justice Finland),http://www.vaalit.fi/
31,vvk,Vabariigi Valimiskomisjon,Vabariigi Valimiskomisjon (Estonian National Electoral Committee),http://www.vvk.ee/?lang=en
26,val,Valmyndigheten,Valmyndigheten (Swedish Election Authority),https://www.val.se/
29,valt,Valtioneuvosto,Valtioneuvosto – Statsrådet (Finnish Government),http://valtioneuvosto.fi/en/government/history
161,vlada,Vlada Republike Slovenije,Vlada Republike Slovenije (Government of the Republic of Slovenia),http://www.vlada.si/si/o_vladi/prejsnje_vlade/
22,volby,Volebním serveru ČSÚ,Volebním serveru ČSÚ (CZSO's Election Server) – Český statistický úřad (Czech Statistical Office),http://www.volby.cz/index_en.htm
34,vrk,Vyriausioji rinkimų komisija,Lietuvos Respublikos vyriausioji rinkimų komisija (The Central Electoral Commission of the Republic of Lithuania),http://www.vrk.lt/en/
61,wid,Wahlen in Deutschland,Valentin Schröder: Wahlen in Deutschland,http://www.wahlen-in-deutschland.de/
40,wiese,Wiesehomeier and Benoit (2009),"Wiesehomeier, Nina, and Kenneth Benoit. 2009. “Presidents, Parties and Policy Competition.” The Journal of Politics 71(4):1435–1447.",http://ninaw.webfactional.com/?page_id=11
15,w,Wikipedia,Wikipedia: The Free Encyclopedia,http://www.wikipedia.org/
203,wilson,Wilson (1985),"Wilson, J. O. 1985. New Zealand parliamentary record 1840-1984. Wellington: V.R. Ward, Government Printer.",
274,ws,World Statesmen,WorldStatesmen.org is an online encyclopedia of the leaders of nations and territories,http://worldstatesmen.org/
282,xna,XNA,Xinhua News Agency,http://www.xinhuanet.com/english/
108,yle,YLE,Yleisradio Oy (Finnish Broadcasting Company),http://www.yle.fi/uutiset/news//
64,yomiuri,Yomiuri Shimbun,"The Daily Yomiuri, The Yomiuri Shimbun",http://www.yomiuri.co.jp/dy/
255,ysk,Yüksek Seçim Kurulu,Yüksek Seçim Kurulu (Supreme Electoral Council of Turkey),
278,zeit,Zeit,ZEIT Online,https://www.zeit.de/index
100,cy-gov,cyprus.gov.cy,Cyprus Government Web Portal (G.W.P) ,http://www.cyprus.gov.cy
168,ddp,ddp Deutscher Depeschendienst,ddp Deutscher Depeschendienst (German press agency),
246,dpa,dpa Deutsche Presse-Agentur,dpa Deutsche Presse-Agentur (German Press Agency),http://www.dpa.de/English.82.0.html
288,erakonnad,erakonnad.info,Eesti Erakondade Ajalugu (History of Estonian Political Parties),https://www.erakonnad.info/
159,dere,flandersnews.be,flandersnews.be (VRT),http://www.deredactie.be/cm/vrtnieuws.english
215,md,maltadata.com,"Parliamentary Election Results, 1921-2013",http://maltadata.com/results.htm
206,verk,nlverkiezingen.com,Nederlandse verkiezingsuitslagen 1918-nu (Dutch election results since 1918),http://www.nlverkiezingen.com/index_en.html
289,parlament-hu,parlament-hu,Országgyűlés (Hungarian National Assembly),https://www.parlament.hu/en/web/house-of-the-national-assembly
290,parlamento-pt,parlamento-pt,Assembleia da República (Portuguese Parliament),https://www.parlamento.pt/sites/en/
163,pc,personal communication,personal communication with country expert -- see comment observation for more details,
292,tmisra,tmisra,Times of Israel ,https://www.timesofisrael.com/
111,asub,ÅSUB,Ålands statistik- och utredningsbyrå (Statistics and Research Åland),
269,onb,Österreichische Nationalbibliothek,Österreichische Nationalbibliothek (Austrian National Library),https://www.onb.ac.at/
140,oepa,Österreichisches Parlament,Österreichisches Parlament (Austrian Parliament),http://www.parlament.gv.at/ENGL/
73,ctk,ČTK,Česká tisková kancelář (Czech News Agency),http://www.ctk.eu/
107,cr7,Český rozhlas 7,Český rozhlas 7 – Radio Praha (Radio Prague),http://www.radio.cz/en/
37,ssr,Štatistický úrad Slovenskej republiky, Štatistický úrad Slovenskej republiky (Statistical Office of the Slovak Republic),http://www.statistics.sk/