| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1981 |
|
De oproep der kabouters | Van Holkema & Warendorf | Novel | |
| 1982 |
|
Secrets of the Gnomes | Harry N. Abrams | Novel | |
| November 1984 |
|
Secrets of the Gnomes | Del Rey / Ballantine | Novel |