- Author: Hermann F. M. Klaas-Sondershausen Author Record # 301842
- Legal Name: Klaas-Sondershausen, Hermann F. M.
- Language: German
- Used These Alternate Names: Herrmann F. M. Klaas-Sonderhausen
- Note: His known home address in the early 1970s was located in Mülheim, North Rhine-Westphalia, West Germany.
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Essays
- Letter (Perry Rhodan #560) (1972)
- Letter (Atlan #102) (1973)
- Letter (Atlan #148) (1974)
- Klaas' Newest Model of Type 3 Flying Disc [English] (1974) [only as by Herrmann F. M. Klaas-Sonderhausen]
- Klaas' Newest Model of Type 3 Flying Disc [2] [English] (1974) [only as by Herrmann F. M. Klaas-Sonderhausen]