Program: HathiTrust Digital Library
- Publisher: Izd-vo na Bŭlgarskata akademii︠a︡ na naukite
- Print ISSN: 0525-0706
- Electronic ISSN: 0525-0706
- OCLC Number: 3260890
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.9-11 1961-1963; v.12-13 no.1 1964-1965; v.14 1966; v.15-17 1966-1968; v.18-20 1969-1971; v.21-22 1971-1972; v.23-24 1973
|
committed to retain | 2010-04-16 | HTDL |
|