5 IZA Discussion Papers
IZA Discussion Paper No. 8163
IZA Discussion Paper No. 4459
IZA Discussion Paper No. 4393
published in: Sociológia - Slovak Sociological Review, 2011, 44 (3), 1-20
IZA Discussion Paper No. 3482
published in: Wirtschaft und Gesellschaft, 2009, 35(1), 13-43
IZA Discussion Paper No. 3198
published in: History & Mathematics: Processes and Models of Global Dynamics, Volgograd, Russia, 2010, 92 – 137