| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Abbot Trithemius - 1462-1516: The Renaissance of Monastic Humanism | 978-90-04-06468-3 (90-04-06468-0) | 1997 |
| Trithemius and Magical Theology: A Chapter in the Controversy over Occult Studies in Early Modern Europe | 978-0-7914-3962-3 (0-7914-3962-3) | 1998 |