1. Abts, K., Swyngedouw, M., Meuleman, B., Baute, S., Galle, J., & Gaasendam, C. (2015). Belgian National Election Study 2014. Codebook: Questions and frequency tables. Leuven: ISPO-KU Leuven and CLEO—Université de Liège.
2. Alber, J. (2006). The European social model and the United States. European Union Politics, 7(3), 393–419.
3. Allen, D. (2010). The structural funds and cohesion policy. In H. Wallace, M. A. Pollack, & A. Young (Eds.), Policy-making in the European Union (6th ed., pp. 229–252). Oxford: Oxford University Press.
4. Allespach, M., & Machnig, J. (2013). A change in course towards a social Europe. In A. M. Grozelier, B. Hacker, W. Kowalsky, J. Machnig, H. Meyer, & B. Unger (Eds.), Roadmap to a social Europe Social Europe report. (pp. 92–94).
5. Anderson, J. (1995). Structural funds and the social dimension of EU policy: Springboard or stumbling block? In S. Leibfried & P. Pierson (Eds.), European social policy: Between fragmentation and integration (pp. 123–158). Washington DC: The Brookings Institution.