Program: HathiTrust Digital Library
- Publisher: Bulgarian Academy of Sciences, Centre of Scientific Information and Documentation
- Print ISSN: 0567-5332
- Electronic ISSN:
- OCLC Number: 4334526
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.22 (1979); 1980; 1981:1-4; 1982-1984; v.28:1-3 (1985); v.29-31 (1987-88); v.32:1-3 (1989); v.33:1-3 (1990)
|
committed to retain | 2011-04-13 | HTDL |
|