| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1958 |
|
The Mechanical Monarch / Twice Upon a Time | Ace Books | Omnibus | 5 |
| 1959 |
|
Kontraspion i rymden | Wennerbergs | Novel | |
| 1959 |
|
Den udødelige legion | Skrifola | Novel | |
| October 1959 |
|
Legion der Zeitlosen | Moewig | Novel | |
| 1961 |
|
Detrás de las estrellas | Cenit | Novel | |
| 1962 |
|
Legion der Zeitlosen | Balowa / Gebrüder Zimmermann | Novel | |
| January 2011 |
|
Planet of Dread / Twice Upon a Time | Armchair Fiction | Omnibus |