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- 2003. Folkets makt. Medborgerskap, demokrati, deltakelse. Gyldendal Akademisk. 233 pages. ISBN: 82-05-32380-1.
- 2002. Miljøvern uten grenser? Gyldendal Akademisk. 171 pages. ISBN: 82-05-30757-1.
- 2001. Norsk miljøvernorganisering mellom stat og lokalsamfunn. Det Norske Samlaget. 207 pages.
- 1996. Miljøvernpolitikk og miljøvernorganisering mot år 2000.
- 1996. Miljøvernundersøkelsen 1995. 400 pages.
- 2014. Associations online: barriers for using web-based communication in voluntary associations. VOLUNTAS - International Journal of Voluntary and Nonprofit Organizations. 25: 730-753. doi: 10.1007/s11266-013-9361-x
- 2013. Inequality, Diversity and Social Trust in Norwegian Communities. Journal of Elections, Public Opinion, and Parties. 23: 322-342.
- 2013. Citizenship identity among Norwegian Sami in core Sami areas. Citizenship Studies. 17: 712-727. doi: 10.1080/13621025.2013.834126
- 2013. Medlemmene mindre viktige. Bergens Tidende. 146: 17-17. Published 2013-06-19.
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- 2012. Klemt mellom staten og markedet. Bergens Tidende. Published 2012-06-03.
- 2012. Sosial kapital og frivillighet. Tidsskrift for velferdsforskning. 15: 122-133.
- 2011. Organisasjonslivet i Hordaland under lupen. Lokalhistorisk magasin. 22: 14-18.
- 2010. Sami Citizenship: Marginalisation or Integration? Acta Borealia. 27: 66-90. doi: 10.1080/08003831.2010.486926
- 2010. Sámi citizenship marginalisation or integration? Acta Borealia. 27: 66-90. doi: 10.1080/08003831.2010.486926
- 2009. Political Consumerism - A Substitute for or Supplement to Conventional Political Participation? Journal of Civil Society. 5: 303-314. doi: 10.1080/17448680903351834
- 2009. Environmentalism between state and local community: why Greenpeace has failed in Norway. Environmental Politics. 18: 391-407. doi: 10.1080/09644010902823774
- 2008. The Importance of Church Attendance and Membership of Religious Voluntary Organizations for the Formation of Social Capital. Social Compass. 55: 478-496. doi: 10.1177/0037768608097234
- 2008. Introduction: European Identities. Perspectives on European Politics and Society. 9: 378-380. doi: 10.1080/15705850802416762
- 2008. Voluntary associations, trust, and civic engagement: A multilevel approach. Nonprofit and Voluntary Sector Quarterly. 37: 249-263. doi: 10.1177/0899764007304754
- 2007. Contacting as a channel of political involvement: Collectively motivated, individually enacted. West European Politics. 30: 93-120. doi: 10.1080/01402380601019704
- 2006. Citizenship: The History of an Idea, by Paul Magnette. West European Politics. 29: 614-615.
- 2006. Norwegian Environmentalism Between State and Local Community: Why Greenpeace Failed in Norway. VOLUNTAS - International Journal of Voluntary and Nonprofit Organizations. 5.
- 2006. Mapping Voluntarism – Scandinavia in Comparison. VOLUNTAS - International Journal of Voluntary and Nonprofit Organizations. 5. 21 pages.
- 2003. Miljøvern uten grenser. Bergens Tidende. Published 2003-01-03.
- 2003. Det vanskelige dyrevernet. Stavanger Aftenblad. Published 2003-01-27.
- 2003. "Politikk i aksjonsform". Bergens Tidende. Published 2003-11-21.
- 2003. Les boken, Killingland! Nationen.
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- 2003. Miljøvern uten grenser? Bergens Tidende. 23. Published 2003-01-03.
- 1997. Medlemskap og demokrati. Politica - Tidsskrift for politisk videnskab. 1.
- 1996. Voter turnout in Norway: Time, Space and Causality. Scandinavian Political Studies. 4.
- 2013. Frivillighet i Norge. Senterets sluttrapport etter 5 år. Senter for forskning på sivilsamfunn og frivillig sektor. 104 pages.
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- 2011. Organisasjonene i Hordaland 1999-2009. Senter for forskning på sivilsamfunn og frivillig sektor. 2011:003. Senter for forskning på sivilsamfunn og frivillig sektor, Oslo/Bergen. 100 pages.
- 2010. Online Political Activism: The Use of new information and communication technology during phases of political mobilization. Rokkansenteret Notat. 6. Stein Rokkan Centre for Social Studies, Bergen. 20 pages.
- 2010. Is commuting bad for civil life? Evidence from three Norwegian cities. ISTR Conference Working Papers. VII. International Society for Third Sector Research. 15 pages.
- 2009. The Activist Group ‘Byen Vår’ and the use of ICT in the Mobilization against Advertisement-Financed Public Furnishings in Bergen. ISTR Conference Working Papers. VI. International Society for Third Sector Research. 42 pages.
- 2009. The Activist Group ‘Byen Vår’ and the use of ICT in the Mobilization against Advertisement-Financed Public Furnishings in Bergen. ISTR Conference Working Papers. VI. International Society for Third Sector Research. 42 pages.
- 2008. Endringsprosesser i norsk frivillighet: En kunnskapsoversikt. Rapport - Rokkansenteret. 2008: 6. Rokkansenteret, Bergen. 58 pages.
- 2007. Sivilsamfunns demokratiske rolle. Er Norge og Danmark så ulike? Institutt for sammenliknende politikk, Bergen. 89 pages.
- 2007. Norwegian Environmentalism Between State and Local Community: Why Greenpeace Failed in Norway. ISTR Conference Working Papers. 5. International Society for Third Sector Research. 36 pages.
- 2007. Mapping Voluntarism – Scandinavia in Comparison. ISTR Conference Working Papers. 5. International Society for Third Sector Research. 21 pages.
- 2002. Samspillet mellom frivillig organisering og demokrati: Teoretiske argument og empirisk dokumentasjon. Rokkansenteret Working Papers. 9. Rokkansenteret, Bergen. 24 pages.
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- 2013. Norsk frivillighetspolitikk - ny och enhetlig? Kapittel 6, pages 89-101. In:
- 2013. Civilsamhället klämt mellan stat och kapital. Välfärd - Mångfald - Framtid. SNS förlag. 334 pages. ISBN: 978-91-86949-39-6.
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- 2012. Sámi logut muitalit 5. Čielggaduvvon sámi statistihkka 2012. Sámi allaskuvla, Guovdageaidnu. 116 pages.
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- 2012. Samiske tall forteller 5. Kommentert samisk statistikk 2012. Sámi allaskuvla, Kautokeino. 116 pages.
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- 2011. Etnisk mangfold, økonomisk ulikhet og sosial kapital. 8, pages 205-224. In:
- 2011. Sosial kapital i Norge. Cappelen Damm AS. 293 pages. ISBN: 978-82-02-34529-7.
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- 2011. Sosial kapital i Norge. Cappelen Damm AS. 293 pages. ISBN: 978-82-02-34529-7.
- 2011. Pendling og sosial kapital innenfor norske storbyregioner. 9, pages 225-243. In:
- 2011. Sosial kapital i Norge. Cappelen Damm AS. 293 pages. ISBN: 978-82-02-34529-7.
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- 2010. New Forms of Citizen Participation. Normative Implications. Nomos Verlagsgesellschaft. 211 pages. ISBN: 978-3-8329-5240-2.
- 2010. The Strange Coexistence of Passive Memberships and High Social Capital in Scandinavia. Kapittel, pages 151-168. In:
- 2010. Nordic Associations in a European Perspective. Nomos Verlagsgesellschaft. 330 pages. ISBN: 978-3-8329-5422-2.
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- 2008. Flernivåstyring og demokrati. Fagbokforlaget. 241 pages. ISBN: 978-82-450-0771-8.
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- 2005. Political Consumerism: Its motivations, power, and conditions in the Nordic countries and elsewhere. Proceedings from the 2nd International Seminar on Political Consumerism, Oslo, August 26-29, 2004. 529 pages.
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- 2004. Tallenes tale 2004. Perspektiver på statistikk og kirke. 159 pages.
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- 1996. Miljøvernpolitikk og miljøvernorganisering mot år 2000.
More information in national current research information system (CRIStin)
Publications in English:
"Associations online. Barriers to using web-based communication in voluntary organizations", Voluntas - International Journal of Voluntary and Nonprofit Organizations, 2014, 25(3): 730-753, in cooperation with Ivar Eimhjellen and Dag Wollebæk.
"Citizenship identity among Norwegian Sami in core Sami areas", Citizenship Studies, 2013, 17(6-7): 712-727, in cooperation with Per Selle and Anne Julie Semb.
"Inequality, Diversity and Social Trust in Norwegian Communities", Journal of Elections, Public Opinion and Parties, 2013, 23(3): 322-342, in cooperation with Elisabeth Ivarsflaten.
Online Political Activism: The use of new information and communication technology during phases of political mobilization, Uni Rokkansenteret, working paper 6-2010, in cooperation with Dag Arne Christensen.
"The Strange Coexistence of Passive Memberships and High Social Capital in Scandinavia" in Risto Alapuro and Henrik Stenius (eds.) (2010) Nordic Associations in a European Perspective, Baden-Baden: Nomos Verlagsgesellschaft, pp.151-168, in cooperation with Dag Wollebæk.
"Sámi Citizenship: Marginalisation or Integration?", Acta Borealia, 2010, 27(1): 66-90, in cooperation with Per Selle.
"Democracy or Do-ocracy: The Activist Group 'Byen Vår' and the Mobilisation against Clear Channel in Bergen" in Erik Amnå (ed.) (2010) New Forms of Citizen Participation. Normative Implications, Baden-Baden: Nomos Verlagsgesellschaft, pp.147-160, in cooperation with Dag Arne Christensen.
"Political Consumerism: A Substitute for or Supplement to Conventional Political Participation?", Journal of Civil Society, 2009, 5(3): 303-314.
"Environmentalism between state and local community: Why Greenpeace has failed in Norway", Environmental Politics, 2009, 18(3): 391-407, in cooperation with Per Selle and Gunnar Grendstad.
‘European Identities’, Perspectives on European Politics and Society, Vol.9, No. 4 (2008), special issue edited in cooperation with Claire Wallace (guest editors).
"The Importance of Church Attendance and Membership of Religious Voluntary Organizations for the Formation of Social Capital", Social Compass, 2008, 55(4): 477-496.
"Voluntary Associations, Trust, and Civic Engagement: A Multilevel Approach", Nonprofit and Voluntary Sector Quarterly, 2008, 37(2): 249-263, in cooperation with Dag Wollebæk.
"Contacting as a channel of Political Involvement: Collectively Motivated, Individually Enacted", West European Politics, 2007, 30(1): 93-120, in cooperation with Jacob Aars.
Unique environmentalism: A comparative perspective. New York: Springer, 2006, in cooperation with Gunnar Grendstad, Per Selle and Øystein Bortne.
"Paul Magnette; Citizenship: the history of an idea", book review in West European Politics, 2006, 29(3): 614-615.
"Membership and democracy" in Paul Dekker and Eric M. Uslaner (eds.) (2001) Social Capital and Participation in Everyday Life, London: Routledge, pp.134-147, in cooperation with Per Selle.
"Organized Environmentalists: Democracy as a Key Value?", Voluntas - International Journal of Voluntary and Non-Profit Organisations, 1998, 9(4): 319-343, in cooperation with Per Selle.
"Voter Turnout in Norway: Time, Space, and Causality", Scandinavian Political Studies, 1996, 19(4): 379-400, in cooperation with Tor Midtbø.
"Mario Diani's Green Networks. A Structural Analysis of the Italian Environmental Movement", book review in Acta Sociologica, 1996, 39(3): 332-335.
