1. Measurement of disproportionality in proportional representation systems;Karpov;Mathematical and Computer Modelling,2008
2. Voting procedures;Brams,2002
3. Inside Voting Procedures;Hołubiec,1994
4. Models of Political Economy;Nurmi,2006
5. Electoral Systems and Party Systems: A Study of Twenty-seven Democracies, 1945–1990;Lijphart,1994