Program: HathiTrust Digital Library
- Publisher: Bŭlgarska akademii︠a︡ na naukite
- Print ISSN: 0557-241X
- Electronic ISSN:
- OCLC Number: 4685126
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.1; v.3; v.5 1983; v.6
|
committed to retain | 2012-05-10 | HTDL |
|