Velkov, V., Lisicov, S. An early Byzantine and mediaeval fort in the Haemus with an inscription and grafitti of emperor Anastasius,
БАН, 1994, с. 254-265.
Velkov, V., Lisicov, S. .
An early Byzantine and mediaeval fort in the Haemus with an inscription and grafitti of emperor Anastasius.
София: БАН, 1994, с. 254-265.
Velkov, V., Lisicov, S. (1994)
An early Byzantine and mediaeval fort in the Haemus with an inscription and grafitti of emperor Anastasius,
София: БАН, с. 254-265
Velkov, V., & Lisicov, S.
(1994).
An early Byzantine and mediaeval fort in the Haemus with an inscription and grafitti of emperor Anastasius. В чест на акад. Димитър Ангелов : Сб.[материали]. София: БАН, с. 254-265.