Sofii︠a︡ : Izd-vo na Bŭlgarskata akademii︠a︡ na naukite, 1975-
Physical Description
v. ; 24 cm.
Extent
Vol. 1-
Notes
English, German, or Russian in Cyrillic script.
Issued by Bŭlgarska akademii︠a︡ na naukite, Edinen tsentŭr za nauka i podgotovka na kadri po matematika i mekhanika; from <198?-> by Bŭlgarska akademii︠a︡ na naukite.