Izvŭnstolichnite kamenni kreposti na Pŭrvoto bŭlgarsko t︠s︡arstvo (IX-nachaloto na XI v.)
By: Dei︠a︡n Rabovi︠a︡nov
Series: Disertat︠s︡ii -- tom 5
Publisher: Nat︠s︡ionalen arkheologicheski institut s muzeĭ--BAN
Published: 2011
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 308
ISBN-13: 9789549472127
Subjects: Fortification; Excavations (Archaeology); Antiquities; Stone buildings
Other titles: Provincial stone fortresses of the First Bulgarian Empire (9th-beginning of 11th century)
Notes: In Bulgarian, with summary in English.