Acosta Arcarazo, D. (2011). The Long-term residence status as a subsidiary form of EU citizenship. The Hague: Brill.
Aleinikoff, TA, & Klusmeyer, D. (2002). Citizenship policies for an age of migration. Washington, DC: Carnegie Endowment.
Anderson, B. (2013). Us and Them? The dangerous politics of immigration control. Oxford: Oxford University Press.
Andrès, H. (2013). Le droit de vote des résidents étrangers est-il une compensation à une fermeture de la nationalité? Le bilan des expériences. Migrations société, 25(146), 103–115.
Arrighi, J, Bauböck, R, Collyer, M, Hutcheson, D, Moraru, M, Khadar, L. & Shaw, J. eds (2013). Franchise and electoral participation of third state citizens residing in the European Union and of EU citizens residing in third states. Study for European Parliament Directorate General for Internal Policies: Policy Department C: Citizens’ Rights and Constitutional Affairs
Atikcan, E. (2006). Citizenship or denizenship: the treatment of third-country nationals in the European Union. Sussex European Institute Working Paper No. 85. www.sussex.ac.uk/sei/documents/seiworking-paper-no-85.pdf
Banting, K, & Kymlicka, W. (2013). Is there really a retreat from multiculturalism policies? New evidence from the multiculturalism policy index. Comparative European Politics, 11(5), 577–598.
Bauböck, R., Cayla, P. & Seth, C. eds. (2012). Should EU Citizens Living in Other Member States Vote There in National Eelections? EUI Working Paper RSCAS 2012/32. Available at http://eudo-citizenship.eu/docs/RSCAS_2012_32.pdf.
Bauböck, R, Ersboll, E, Groenendijk, K, & Waldrauch, H. (2006). Acquisition and loss of nationality: Volume 2: Comparative Analysis. Amsterdam, the Netherlands: Amsterdam University Press.
Bauböck, R. (2005a). Expansive citizenship: Voting beyond territory and membership. Political Science and Politics, 38(4), 683–687.
Bauböck, R. (2005b). Civic citizenship: a new concept for the New Europe. In R Süssmuth & W Widenfeld (Eds.), Managing integration: the European Union’s responsibilities towards migrants (pp. 122–138). Gütersloh, Germany: Bertelsmann Stiftung.
Bauböck, R (Ed.). (1994). From Aliens to Citizens. Redefining the Status of Immigrants in Europe. Aldershot: Avebury.
Bertossi, C, & Duyvendak, JW. (2013). National models of immigrant integration: The costs for comparative research. Comparative European Politics, 10(3), 237–247.
Block, L, & Bonjour, S. (2013). Fortress Europe or Europe of Rights? The Europeanisation of family migration policies in France, Germany, and the Netherlands. European Journal of Migration and Law, 15, 203–224.
Bloemraad, I. (2006). Becoming a Citizen: Incorporating Immigrants and Refugees in the United States and Canada. Berkeley, CA: University of California Press.
Brubaker, R. (1992). Citizenship and Nationhood in France and Germany. Cambridge, MA: Harvard University Press.
Carens, J. (2005). The Integration of Immigrants. Journal of Moral Philosophy, 2(1), 29–46.
Carrera, S. (2009). In Search of the Perfect Citizen? The intersection between integration, immigration and nationality in the EU. The Hague: Brill.
Castles, S. (1995). How Nation-States Respond to Immigration and Ethnic Diversity. New Community, 21(3), 293–308.
Cinar, D. (2010). Austria. EUDO Citizenship Observatory Country Report. San Domenico di Fiesole: European University Institute.
De Schutter, O. (2009). Links between migration and discrimination, European network of legal experts in the non-discrimination field. Brussels: European Commission.
Dronkers, J, & Fleischmann, F. (2010). The Educational Attainment of Second Generation Immigrants from Different Countries of Origin in the EU Member-States. In J Dronkers (Ed.), Quality and Inequality of Education (pp. 163–204). Netherlands: Springer.
European Commission. (2011). Report on the application of Directive 2003/109/EC concerning the status of non-EU citizens who are long-term residents, COM (2011) 585 final. Brussels: European Commission.
European Commission. (2003). Communication on immigration, integration and employment, COM (2003) 336. Brussels: European Commission.
Favell, A. (2003). Integration Nations: The Nation-state and research on immigrants in Western Europe. Comparative Social Research, 22, 13–42.
Gehring, J. (2009). Hidden connections: Citizenship and anti-discrimination policy in Europe. In R Zapata-Barrero (Ed.), Citizenship policies in the age of diversity: Europe at the crossroads (pp. 103–116). Spain: CIDOB Foundation.
Goldston, J. (2006). Holes in the rights framework: Racial discrimination, citizenship, and the rights of non-citizens. Ethics and International Affairs, 20(3), 321–347.
Goodman, SW. (2011). Controlling immigration through language and state knowledge requirements. West European Politics, 34(2), 235–255.
Goodman, SW. (2010). Naturalisation policies in Europe: Exploring patterns of inclusion and exclusion (p. 7). Italy: EUDO-Citizenship Comparative Report, RSCAS/EUDO-CIT-Comp.
Groenendijk, K. (2008). Local voting rights for non-nationals in Europe: what we know and what we need to learn. Washington, DC: Migration Policy Institute.
Groenendijk, K. (2006). The Legal integration of potential citizens: Denizens in the EU in the final years before the implementation of the 2003 Directive on long-term resident non-EU citizens. In R Baubock (Ed.), Acquisition and loss of nationality: Volume 1: Comparative Analysis (pp. 385–410). Amsterdam: Amsterdam University Press.
Groenendijk, K. (2004). Legal concepts of integration in EU migration law. European Journal of Migration and Law, 6(2), 111–126.
Groenendijk, K, Guild, E, & Dogan, H. (1998). Security of residence of long-term migrants. Strasbourg: Council of Europe Publishing.
Guild, E, Groenendijk, K, Carrera, S, (Eds.). (2009). Illiberal liberal states: Immigration, citizenship, and integration in the EU. Aldershot: Ashgate.
Hammar, T. (1990). Democracy and the nation state: Aliens, denizens and citizens in a world of international migration. Aldershot: Avebury.
Hammar, T. (1985). European immigration policy: A comparative study. Cambridge, UK: Cambridge University Press.
Hansen, R. (2009). The Poverty of postnationalism: Citizenship, immigration, and the new Europe. Theory and Society, 38(1), 1–24.
Hansen, R, & Weil, P. (2001). Towards a European Nationality: citizenship, immigration and nationality law in the EU. New York: Palgrave, New York.
Helbling, M. (2013). Validating integration and citizenship policy indices. Comparative European Politics, 11(5), 555–576.
Helgertz, J, Bevelander, P, & Tegunimataka, A. (2014). Naturalization and earnings: a Denmark–Sweden comparison. European Journal of Population, 30(3), 337–359.
Howard, M. (2009). The Politics of Citizenship in Europe. Cambridge, UK: Cambridge University Press.
Huddleston, T. (2013). The Naturalisation procedure: measuring the ordinary obstacles and opportunities for immigrants to become citizens. EUDO Citizenship Observatory. San Domenico di Fiesole: European University Institute.
Huddleston, T. (2009). Promoting citizenship: the choices for immigrants, advocates, and European cooperation. In R Zapata-Barrero (Ed.), Citizenship policies in the age of diversity: Europe at the crossroads (pp. 157–172). Spain: CIDOB Foundation.
Huddleston, T, & Dag Tjaden, J. (2013). Using EU Indicators of Immigrant Integration. Brussels, Belgium: European Commission.
Huddleston, T, Niessen, J, & Ni Chaoimh, E. (2010). Migrant Integration Policy Index (3rd ed.). Brussels: British Council and Migration Policy Group.
Jacobs, D, & Rea, A. (2007). The End of National Models? Integration courses and citizenship trajectories in Europe. International Journal on Multicultural Societies, 9, 264–283.
Jacobson, D. (1996). Rights Across Borders: Immigration and the Decline of Citizenship. USA: Johns Hopkins University Press.
Janoski, T. (2010). The Ironies of Citizenship: Naturalization and Integration in Industrialized Countries. Cambridge, UK: Cambridge University Press.
Jeffers, K, Honohan, I, & Baubock, R. (2012). CITLAW Indicators: How to measure the purposes of citizenship laws. EUDO-Citizenship Observatory. San Domenico di Fiesole: European University Institute.
Joppke, C. (2010). The Inevitable Lightening of Citizenship. European Journal of Sociology, 51(1), 9–32.
Joppke, C. (2007a). Transformation of immigrant integration in Western Europe: Civic integration and anti-discrimination policies in the Netherlands, France, and Germany. World Politics, 59(2), 243–273.
Joppke, C. (2007b). Transformation of citizenship: Status, rights, identity. Citizenship Studies., 11(1), 37–48.
Kofman, E. (2004). Family-related migration: a critical review of European Studies. Journal of Ethnic and Migration Studies, 30(2), 243–262.
Koning, EA. (2011). Ethnic and Civic Dealings with Newcomers. Naturalization Policies and Practices in 26 Immigration Countries. Ethnic and Racial Studies, 43(11), 1974–1992.
Koopmans, R, Michalowski, I, & Waibel, S. (2012). Political processes and cross-national convergence in Western Europe, 1980–2008. American Journal of Sociology, 117(4), 1202–1245.
Koopmans, R, Statham, P, Giugni, M, & Passy, F. (2005). Contested Citizenship: Immigration and Diversity in Europe. USA: University of Minnesota Press.
Kostakopoulou, T. (2010). Matters of control: Integration tests, naturalisation reform and probationary citizenship in the United Kingdom. Journal of Ethnic and Migration Studies, 36(5), 829–846.
Kostakopoulou, T. (2006). Thick, Thin and Thinner Patriotisms: Is This All There Is? Oxford Journal of Legal Studies, 26(1), 73–106.
Kostakopoulou, D. (2003). Why Naturalisation? Perspectives on European Politics and Society, 4(1), 85–115.
Linting, M, Meulman, JJ, Groenen, PJF, & Van der Kooij, JJ. (2007). Nonlinear principal components analysis: Introduction and application. Psychological Methods, 12, 336–358.
Pedroza, L. (2013). Citizenship before Nationality: How Democracies Redefine Citizenship by Debating the Extension of Voting Rights to Settled Migrants. PhD Dissertation. Germany: Bremen International Graduate School of Social Sciences.
Pickus, N. (1998). Immigration and Citizenship in the Twenty-First Century. Lanham, Maryland: Rowman and Littlefield.
Rubio-Marin, R. (2000). Immigration as a Democratic Challenge. Cambridge, UK: Cambridge University Press.
Ruhs, M. (2011). Openness, Skills and Rights: An Empirical Analysis of Labour Immigration Programmes in 46 High- and Middle-income Countries. COMPAS Working Paper. www.compas.ox.ac.uk/publications/working-papers/wp-11-88/
Schuck, P. (1989). Membership in the liberal polity: the devaluation of American citizenship. Georgetown Immigration Law Journal, 3, 1–18.
Soysal, Y. (1994). Limits of Citizenship: Migrants and post-national membership in Europe. Chicago: University of Chicago Press.
Steinhardt, MF. (2012). Does citizenship matter? The economic impact of naturalizations in Germany. Labour Economics, 19(6), 813–823.
Strik, T, de Hart, B, & Nissen, E. (2013). Family reunification: a barrier or facilitator of integration? the Netherlands: University of Nijmegen.
Van Oers, R, Erboll, E, & Kostakopoulou, D. (2010). A Redefinition of Belonging? Language and Integration Tests in Europe. The Hague: Brill.
Vernby, K. (2013). Inclusion and public policy: Evidence from Sweden’s Introduction of Noncitizen suffrage. American Journal of Political Science., 57(1), 15–29.
Vink, MP, & Bauböck, R. (2013). Citizenship Configurations: Analysing the Multiple Purposes of Citizenship Regimes in Europe. Comparative European Politics, 11(5), 621–648.
Vink, MP, & De Groot, GR. (2015). Citizenship Policies in the European Union: International Framework and Domestic Trends. In D Besharov & M Lopez (Eds.), A World in Motion: Trends in Migration and Migration Policy. Forthcoming: Oxford University Press.
Vink, M, Prokic-Breuer, T, & Dronkers, J. (2013). Immigrant Naturalization in the Context of Institutional Diversity: Policy Matters, But to Whom? International Migration, 51(5), 1–20.
Waldrauch, H. (2006). Methodology for comparing acquisition and loss of nationality. In Bauböck, R, Ersboll, E, Groenendijk, K, & Waldrauch, H. (2006). Acquisition and loss of nationality: Volume 2: Comparative Analysis. Amsterdam, the Netherlands: Amsterdam University Press, pp. 105-120.
Waldrauch, H, & Hofinger, H. (1997). An Index to Measure the Legal Obstacles to the Integration of Migrants. New Community, 23(2), 271–285.
Walzer, M. (1983). Spheres of Justice. New York, NY: Basic Books.
Weil, P. (2001). Access to Citizenship: comparison of 25 nationality laws. In T Aleinikoff (Ed.), (2001) Citizenship today: global perspectives and practices. Washington, DC: Carnegie Endowment.
Wray, H. (2013). Regulating marriage migration into the UK: a Stranger in the home. Farnham: Ashgate.