Program: HathiTrust Digital Library
- Publisher: Izd-vo Bolgarskoĭ akademii nauk
- Print ISSN: 0204-6989
- Electronic ISSN:
- OCLC Number: 2459545
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.4-10; v.11-20
|
committed to retain | 2009-07-25 | HTDL |
|