T︠S︡i︠a︡losten energien balans na NR Bŭlgarii︠a︡ za godinite 1953, 1954 i 1955
Publisher: Bŭlgarska akademii︠a︡ na naukite
Published: 1960
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 235
Subjects: Power resources
Notes: At head of title: Bŭlgarska akademii︠a︡ na naukite. Otdelenie za matematicheski, fizicheski i tekhnicheski nauki. Tekhnicheski institut. Dimitŭr A. Georgiev, Boris St. Kostov.

Summaries in Russian, French and German.