HSR 5 (1980)
For 1980, the following issues are freely accessible:
- HSR-Volume 5.4 (1980). Mixed Issue
- HSR-Volume 5.3 (1980). Mixed Issue
- HSR-Volume 5.2 (1980). Mixed Issue
- HSR-Volume 5.1 (1980). Mixed Issue
For 1980, the following issues are freely accessible: