| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Canon and Canonicity: The Formation and Use of Scripture | 978-87-635-3027-9 (87-635-3027-9) | 2010 | |
| The Letters of Ahmad Ibn Idris | 978-0-8101-1070-0 (0-8101-1070-9) | 1993 | Bernd Radtke · R. S. O'Fahey · Ali Salih Karrar · Albrecht Hofheinz |
| The Spiritual Seed: The Church of the Valentinians | 978-90-04-14802-4 (90-04-14802-7) | 2005 | |
Brill · Museum Tusculanum Press · Northwestern University Press