| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1967 |
|
These Savage Futurians / The Double Invaders | Ace Books | Omnibus | |
| May 1968 |
|
Kosmischer Schachzug | Heyne | Novel | |
| 1979 |
|
Kosmischer Schachzug | Heyne | Novel |