| Iceland ÓT Hardarson, GH Kristinsson Elections in Europe, 947-986, 2010 | 62* | 2010 |
| The Icelandic electoral system 1844–1999 ÓT Hardarson The Evolution of Electoral and Party Systems in the Nordic Countries, 101-166, 2002 | 30 | 2002 |
| Geography and political representation H Valen, HM Narud, ÓT Hardarson Beyond Westminster and congress: The nordic experience, 107-131, 2000 | 30 | 2000 |
| The Icelandic parliamentary election of 1987 ÓT Hardarson, GH Kristinsson Electoral Studies 6 (3), 219-234, 1987 | 28 | 1987 |
| Re‐electing the culprits of the crisis? Elections in the aftermath of a recession IH Indriðason, EH Önnudóttir, H Þórisdóttir, ÓÞ Harðarson Scandinavian Political Studies 40 (1), 28-60, 2017 | 25 | 2017 |
| Media and politics in Iceland ÓT Hardarson Communicating politics: Political communication in the Nordic countries, 63-82, 2008 | 23 | 2008 |
| Parties and Voters in Iceland: A Study of the 1983 and 1987 Althingi Elections ÓT Hardarson University of Iceland Press, 1995 | 20 | 1995 |
| Icelandic security and foreign policy: the public attitude ÓT Hardarson Cooperation and Conflict 20 (4), 297-316, 1985 | 20 | 1985 |
| Policy performance and satisfaction with democracy EH Önnudóttir, ÓÞ Harðarson Stjórnmál og stjórnsýsla 7 (2), 417, 2011 | 18 | 2011 |
| Critical election in the wake of an economic and political crisis: realignment of Icelandic party voters? EH Önnudóttir, H Schmitt, ÓÞ Harðarson Scandinavian Political Studies 40 (2), 157-181, 2017 | 17 | 2017 |
| Five most similar systems? K Heidar, E Damgaard, P Esaiasson, TÓ Hardarson, T Raunio Beyond Westminster and Congress: The Nordic Experience, 17-50, 2000 | 17 | 2000 |
| The 1999 parliamentary election in Iceland ÓT Hardarson, GH Kristinsson Electoral Studies 2 (20), 325-331, 2001 | 12 | 2001 |
| Electoral politics in crisis after the great recession: Change, fluctuations and stability in Iceland EH Önnudóttir, AF Helgason, ÓT Harðarson, H Thórisdóttir Taylor & Francis, 2022 | 11 | 2022 |
| Political communication in Iceland ÓÞ Harðarsson Communicating politics: Political communication in the Nordic countries, 63-82, 2008 | 11 | 2008 |
| Republic of Iceland ÓT Hardarson World encyclopedia of political systems and parties, 569-580, 2006 | 11 | 2006 |
| Political data in 2003 I Van Biezen, RS Katz European Journal of Political Research 43 (7–8), 919-926, 2004 | 11 | 2004 |
| Iceland ÓÞ Harðarson, GH Kristinsson | 11 | 1999 |
| Political cleavages, party voter linkages and the impact of voters’ socio-economic status on vote-choice in Iceland EH Önnudóttir, ÓÞ Harðarson | 11 | 1983 |
| Parties and voters in Iceland: a study of the 1983 and 1987 Althingi elections ÓÞ Harðarson Social Science Research Institute, University of Iceland, 1995 | 10 | 1995 |
| Party identification and its evolution over time EH Önnudóttir, ÓÞ Harðarson Research Handbook on Political Partisanship, 167-176, 2020 | 9 | 2020 |
