@book{ 0-566012928, title = {Duma: Bălgarski nacionalen vsekidnevnik}, address = {Sofija}, publisher = {}, year = {2004}, language = {Bulgarian}, note = {Gesehen am 08.05.08}, url = {http://www.duma.bg}, url = {https://katalog.bibliothek.tu-chemnitz.de/Record/0-566012928} }