Herron, Erik S. (2002), "Causes and Consequences of Fluid Faction Membership in Ukraine", Europe-Asia Studies, 54 (4): 625–639, doi:10.1080/09668130220139190, S2CID155304620
Herron, Erik S. (2002), "Causes and Consequences of Fluid Faction Membership in Ukraine", Europe-Asia Studies, 54 (4): 625–639, doi:10.1080/09668130220139190, S2CID155304620