@book {Be{\v s}evliev1964, title = {Sp{\"a}tgriechische und spatlateinische Inschriften aus Bulgarien}, series = {Berliner byzantinische Arbeiten}, number = {30 }, year = {1964}, publisher = {Academie Verlag}, organization = {Academie Verlag}, address = {Berlin}, author = {Be{\v s}evliev, Veselin} } @book {Be{\v s}evliev1963, title = {Die protobulgŠ°rischen Inschriften}, series = {Berliner byzantinistische Arbeiten}, number = {23}, year = {1963}, publisher = {Academie Verlag}, organization = {Academie Verlag}, address = {Berlin}, author = {Be{\v s}evliev, Veselin} }