Datenquelle: GND
Graždanite i politikata
Sofija, 1997Bălgarskite političeski partii v naveěrieto na parlamentarnite izbori '2001
Sofija : GoreksPres, 2000Organizational structures and internal party democracy in South Eastern Europe
Sofia : GorexPress, 2005Partijnata sistema v Bălgarija
Sofija : GoreksPres, 2006The party system in Bulgaria 2001 - 2009
transformation and evolution of the political partiesSofia, 2010Challenges facing the consolidation of democracy in Bulgaria
Sofia : Friedrich Ebert Foundation, Office Bulgaria, 2012Partijnata sistema v Bălgarija
2009-2019 godinaSofija : Fondacija Fridrich Ebert, Bjuro Bălgarija, Oktomvri 2019