| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| June 1975 |
|
Special Feature | Avon | Novel | |
| June 1975 |
|
Special Feature | Avon | Novel | |
| March 1982 |
|
John Sinclair, #191: Fenris, der Götterwolf | Bastei | MAGAZINE | |
| April 1984 |
|
Der Höllenhund | Zauberkreis | Chapbook | |
| June 2015 |
|
Fenris, der Götterwolf | Bastei Entertainment | Chapbook |