Program: HathiTrust Digital Library
- Publisher: VEB Carl Zeiss
- Print ISSN: 0562-701X
- Electronic ISSN: 0562-701X
- OCLC Number: 1996318
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.19-25 1968-1972; index v.1/25 1963/72
|
committed to retain | 2018-08-25 | HTDL |
|