| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1978 |
|
World of Ptavvs | Orbit / Futura | Novel | |
| 1978 |
|
World of Ptavvs | Orbit / Futura | Novel | |
| 1979 |
|
De wereld van de Ptavvs | Elsevier | Novel | |
| 1980 |
|
Solar Wind | Perigee Paper Tiger | Nonfiction | 64 |
| 1980 |
|
World of Ptavvs | Orbit | Novel | |
| 1980 |
|
Solar Wind | Paper Tiger | Nonfiction | 64|64.1 |
| April 1980 |
|
Die Terranauten, #13: Der Fremde | Bastei | MAGAZINE | |
| September 1983 |
|
I giochi mortali di Zelos | Fanucci Editore | Novel | |
| September 1990 |
|
De wereld van de Ptavvs | Meulenhoff | Novel | |
| 1994 |
|
Solar Wind | Paper Tiger | Nonfiction | 64|64.1 |
| 1996 |
|
Svět Ptavvů | United Fans / Klub Julese Vernea | Novel |