Muller, W. C., & Meyer, T. M. (2010). Meeting the Challenges of Representation and Accountability in Multi-party Governments. West European Politics, 33(5), 1065-1092. doi:10.1080/01402382.2010.486135
Conti, N. N., Roux, C. C., & Tronconi, F. F. (2009). Introduction: Parties and voters in a multi-level electoral setting. Modern Italy, 14(2), 127-133. doi:10.1080/13532940902797254
Ranked Choice voting similar to proportional voting