Da Capo Press · Kopp, Rottenburg
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Top Secret/Majic: Operation Majestic-12 and the United States Government's UFO Cover-up | 978-1-56924-342-8 (1-56924-342-5) | 2005 | Stanton T. Friedman | |
| UFO-Absturz bei Corona | 978-3-930219-03-2 (3-930219-03-4) | 1995 | Don Berliner |