@article {Konev1980, title = {Charles du Fresne, seigneur du Cange et sa {{\quotedblbase}Series} historica et genealogica regum bulgarie{\textquotedblleft}}, journal = {Palaeobulgarica / Старобългаристика}, volume = {4}, year = {1980}, pages = {69{\textendash}85}, author = {Konev, Ilija and Topalov, Stefan and Genov, Ivan} }