Letters (Perry Rhodan 973)
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Editions/Publications:
- 1991 . Perry Rhodan, #973: Das seltsame Genie (1991, various, Pabel-Moewig, DM 2.20, 68 pages, digest, MAGAZINE)
- 1991 . Perry Rhodan, #729: Die Nullbewahrer (1991, various, Pabel-Moewig, DM 2.20, 68 pages, digest, MAGAZINE)
- 1991 . Perry Rhodan, #469: Der Tod fliegt mit (1991, various, Pabel-Moewig, DM 2.20, 68 pages, digest, MAGAZINE)