Rossel, Cecilia; González de Reufels, Delia; Nullmeier, Frank, 2025: Social Security of State Employees. Historical Developments Around the World, Cham: Palgrave Macmillan, (forthcoming)

Nullmeier, Frank, 2021: Kausale Mechanismen und Process Tracing. Perspektiven der qualitativen Politikforschung, Frankfurt a.M., New York: Campus, Download PDF, Link (Date: 10.09.2021)

Nullmeier, Frank; González de Reufels, Delia; Obinger, Herbert (Ed.), 2022: International Impacts on Social Policy. Short Histories in Global Perspective, Global Dynamics of Social Policy, Cham: Palgrave Macmillan, doi:10.1007/978-3-030-86645-7

Kuhlmann, Johanna; Nullmeier, Frank (Ed.), 2022: Causal Mechanisms in the Global Development of Social Policies, Global Dynamics of Social Policy, Cham: Palgrave Macmillan, doi:10.1007/978-3-030-91088-4

Blum, Sonja; Kuhlmann, Johanna; Schubert, Klaus (Ed.), 2020: Routledge Handbook of European Welfare Systems, London/New York: Routledge

Churchill, Harry; González de Reufels, Delia, 2025: The Sugar Industry and Social Policy in Jujuy, Argentina, during the 1930s, in: Journal of Latin American Studies, (forthcoming)

Öktem, Kerem Gabriel, 2024: Changing patterns of inclusion into old age protection in the Ottoman Empire and the Republic of Turkey (1865–2020), in: Middle Eastern Studies, doi:10.1080/00263206.2024.2389878, Download PDF

Szikra, Dorottya; Öktem, Kerem Gabriel, 2023: An illiberal welfare state emerging? Welfare efforts and trajectories under democratic backsliding in Hungary and Turkey , in: Journal of European Social Policy, 33 (2), pp. 201 - 215, doi:10.1177/09589287221141365, Download PDF

Kuhlmann, Johanna; Van der Heijden, Jeroen; Lindquist, Evert; Wellstead, Adam, 2021: Have policy process scholars embraced causal mechanisms? A review of five popular frameworks, in: Public Policy and Administration, 36 (2), pp. 163 - 186, doi:10.1177/0952076718814894

Blum, Sonja; Kuhlmann, Johanna, 2021: Wir sind Helden. Sozialpolitische Maßnahmen und politische Kommunikation in der Corona-Pandemie, in: dms – der moderne staat – Zeitschrift für Public Policy, Recht und Management, 14 (2), pp. 411 - 432, doi:10.3224/dms.v14i2.04