Program: HathiTrust Digital Library
- Publisher: Izd-vo na Bŭlgarskata akademii︠a︡ na naukite
- Print ISSN: 0204-7217
- Electronic ISSN:
- OCLC Number: 2407785
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.1-6(1975-1977); v.7-13(1977-1980); v.15-20(1981-1984); v.21-25(1985-1988); v.26-30(1988-1994)
|
committed to retain | 2016-05-22 | HTDL |
|