a citizen with a view
 External Citizenship in European Union Countries. Ethnic and Racial Studies. 37(3), 2340-2360.
 How Illiberal Are Citizenship Rules in European Union Countries? EUI Working Paper, European University Institute.
 Rolling Back History: The Romanian Policy of Restoration of Citizenship to Former Citizens. CITSEE, the University of Edinburgh.
 The Politics of Electoral Statistics in Romania. EUDO Citizenship, European University Institute.
 Nationality, Citizenship and Ethno-National Belonging: Preferential Membership Policies in Europe. Palgrave Macmillan.
 Super-foreigners and Sub-citizens: Mapping Ethno-national Hierarchies of Foreignness and Citizenship in Europe. Ethnopolitics 14(3), 296-310.
 (with R. Bauböck) Bloodlines and Belonging: Time to Abandon Ius Sanguinis? EUI Working paper, EUDO Citizenship, European University Institute.
 Reproducing the nation: reproduction, citizenship and ethno-demographic survival in post-communist Romania. Journal of Ethnic and Migration Studies 43(9), 1490-1507.
 (with L. Roots) E-Citizenship Opportunities in the Changing Technological Environment. In Kerikmäe, T. and Rull, A. (eds) The Future of Law and eTechnologies. Springer.
 (with O.W. Vonk, M. Vink and G-R. de Groot) 'Benchmarking' Legal Protection Against Statelessness. In L. de Waas and M. Khanna (eds) Solving Statelessness. Wolf Legal Publishers.
 Nationality, Ethno-cultural Preference and Public International Law. In Lachmayer et al (eds.), International Constitutional Law in Legal Education. Vienna: Facultas, 125-64.
 Procedura Codeciziei: Mod de Functionare si Implicatii la Nivelul Echilibrului Institutional European. In: F. Pop, S. Gherghina and G. Jiglau (eds,) Uniunea Europeana: Drept, Institutii si Politici Comunitare. Cluj Napoca: Argonaut, 69-91.
 Welcome to E-stonia! E-residence and Citizenship in an Electronic Republic. EUDO Citizenship, European University Institute.
 Introduction: Citizenship in Post-communist Eastern Europe. Special Issue: Citizenship in Post-Communist Eastern Europe: Contracting, Expanding and Overlapping, Central and Eastern European Migration Review 6(1), 5-13.
 Use of the Schengen Information Systems for the Return of Illegally Staying Third-Country Nationals. Legislative briefing, European Parliament, European Parliamentary Research Service (EPRS).
 Revision of Schengen Information Systems for Law Enforcement. Legislative briefing, European Parliament, European Parliamentary Research Service (EPRS).
 Revision of Schengen Information Systems for Border Checks'. Legislative briefing, European Parliament, European Parliamentary Research Service (EPRS).
 Five Comments on Citizenship Policies in CEE Countries. In: A. Liebich and R. Bauböck, eds, Is There (still) an East-West Divide in the Conception of Citizenship in Europe? EUI Working Paper 2010/19, European University Institute.
 Multicultural Education. A Comparative Analysis between France and Britain. In: S. Buhai, C. Dumbrava, R. Maierean, A. Mihai, R. Ratiu and S. Vieru, (eds.) New Approaches in Humanistic Sciences. Iasi: Lumen, 237-58.
 Natiuni si Nationalisme. O analiza a Nationalismului din Perspectiva Ideilor despre Natiune. Sfera Politicii, 120 (1-2) 109-14.
 Postmodernitatea ca Metafora a Eliberarii. Sfera Politicii, 119 56-8.
 Liberalism si Diversitate: o Provocare Postmoderna? In: C. Dumbrava, C. Costandache and A. Sandu (eds,) Cercetari Multidimensionale in Stiintele Umaniste. Iasi: Lumen, pp. 10-66.
 (with A. Bessa, V. Pavlou and M. Guerrero) Linguistic Minority Rights: a Comparative Study of Italy, Hungary, Luxembourg and South Africa. In International Constitutional Law in Legal Education.
 European Union Agency for Asylum. Legislative briefing, European Parliament, European Parliamentary Research Service (EPRS).
 Developments in Central and Eastern European Politics( eds. S. White, P.G. Lewis and J. Batt, Palgrave Macmillan, 2014). Book review, Journal of Common Market Studies 53, 428–429.
 Citizenship in Central and Eastern Europe: Comparative report. Global Citizenship Observatory (GLOBALCIT), Robert Schuman Centre for Advanced Studies, European University Institute.
 European information systems in the area of justice and home affairs. EPRS In-depth analysis.
 Interoperability of European information systems for border management and security. Briefing, European Parliament, European Parliamentary Research Service (EPRS).
 Citizenship and Technology. In Shachar, A., R. Bauböck, I. Bloemraad and M. Vink (eds), Oxford Handbook of Citizenship, Oxford University Press.
 Citizenship Regulations in Eastern Europe. Acquisition of Citizenship at Birth and through Regular Naturalization in Sixteen Postcommunist Countries. CEU Political Science Journal 2(4), 450-72.
 Labour Immigration Policy in Europe? What Kind? Berlin: Network Migration in Europe.
 European Agency for the operational management of large-scale IT systems in the area of freedom, security and justice (eu-LISA). European Parliamentary Research Service (EPRS).