| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Biology of the Vipers | 978-0-9720154-0-0 (0-9720154-0-X) | 2002 | Gordon W. Schuett · Michael E. Douglas |
| Mating Strategies and Sperm Competition in the Adder . | 978-91-554-3630-8 (91-554-3630-7) | 1995 | |