Udo Classen
Source: "Udo Classen Bibliography." Author Wars, https://authorwars.com/authors/udo-classen.html".
Pseudonyms:
Titles:
Essays
- 1982. Letter (Atlan #542)
- 1982. Letter (Atlan #546)
- 1982. Letter (Atlan #575)
- 1983. Atlan 1 - 599
- 1984. Letter (Atlan #654)
- 1986. Letter (Perry Rhodan #1284)
- 1988. Letter (Perry Rhodan #1380)
- 1988. Letter (Perry Rhodan #1391)
- 1990. Letter (Perry Rhodan #1502)
- 2005. Letter (Mission Mars #10)
- 2005. Letter (Perry Rhodan #2306)
- 2007. Letter: Begegnungen der ersten Art
- 2010. Letter (Perry Rhodan #2557)