Gendzwill, Adam (University of Warsaw, Poland),Kjaer, Ulrik (University of Southern Denmark, Denmark),Steyvers, Kristof (Ghent University, Belgium)
（1）
Kulas, Piotr (University of Warsaw, Poland),Waskiewicz, Andrzej (University of Warsaw, Poland),Krawczyk, Stanislaw (Adam Mickiewicz University, Poland)
（1）
Pawel (University of Warsaw Swianiewicz Poland),Adam (University of Warsaw Gendzwill Poland),Kurt (The Danish Centre for Social Science Research Houlberg Denmark),Jan Erling (University of Oslo Klause
（1）
；Gendzwill, Adam (University of Warsaw, Poland),Kjaer, Ulrik (University of Southern Denmark, Denmark),Steyvers, Kristof (Ghent University, Belgium)
（1）
；Kulas, Piotr (University of Warsaw, Poland),Waskiewicz, Andrzej (University of Warsaw, Poland),Krawczyk, Stanislaw (Adam Mickiewicz University, Poland)
（1）
