Kreposti i pŭtishta.
Series: Biblioteka "Geroichna letopis,"; godina 6, kn. 6
Publisher: Izd-vo na Nat͡s︡ionalnii͡a︡ sŭvet na Otechestvenii͡a︡ front
Published: 1965
Place of publication: [Sofii͡a︡]
Language: bul
Number of pages: 59
Subjects: Byzantine Empire -- History
Notes: At head of title: Velizar Velkov.