1
Published: 2021
Superior document: Nepoznatijat Rimski limes v Bălgarija = The unknown Roman limes in Bulgaria Čast 1 = Part 1
2
Published: 2011-
3
Published: 2011
Superior document: Istorija na Dobrudža Tom 1
4
Published: 2021-
Publisher: Издателство "Фабер" / Izdatelstvo "Faber"