| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Hendrik Engelʼs Alphabetical list of Dutch zoological cabinets and menageries | 978-90-6203-618-9 (90-6203-618-X) | 1986 | Pieter, with the assistance of A.P.M. SANDERS SMIT |
| Läppen von einkristallinem Silicium. | 978-3-8167-4631-7 (3-8167-4631-4) | 1997 | |