Bastei Lübbe · St. Martin's Press
| title | ISBN-13 | year of publica- tion | |
|---|---|---|---|
| Alpha Female | 978-0-7653-4420-5 | 2009 | |
| Buffalo Medicine | 978-0-7653-4419-9 | 2004 | |
| Clinical Trial | 978-0-8125-7468-5 | 2001 | |
| Das Protokoll | 978-3-404-14780-9 | 2002 | |
| Edgewater | 978-0-8125-9045-6 | 1998 | |
| The Protocol | 978-0-312-86638-9 | 1999 | |
| Untitled Christofferson #5** | 978-0-7653-0253-3 |