1. Boll, B., & Rommele, A. (1994). The problem of incumbency in democratic systems. The Victorious Incumbent: A Threat to Democracy, 19–25.
2. Cirone, A. (2018). “Political Dynasties in the European Parliament”, Online version (1.0) for Toronto 2018, not published (p. 28). https://rubenson.org/wp-content/uploads/2018/09/cirone-tpbw18.pdf
3. Crowther, W., & Matonyte, I. (2007). Parliamentary elites as a democratic thermometer: Estonia, Lithuania and Moldova compared. Communist and Post-Communist Studies, 40, 281–299.
4. Däubler, T., & Hix, S. (2018). Ballot structure, list flexibility and policy representation. Journal of European Public Policy, 25(12), 1798–1816.
5. de Lange, S. (2019). Green wave of populist surge. In N. Bolin, K. Falasca, M. Grusell, & L. Nord (Eds.), Euroflections (pp. 59–60). Demicom.