Chessgate · Russell Enterprises
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Modernes Skandinavisch | 978-3-935748-13-1 (3-935748-13-2) | 2006 | Matthias Wahls · Karsten Müller | |
| The Modern Morra Gambit: A Dynamic Weapon Against the Sicilian | 978-1-888690-32-3 (1-888690-32-1) | 2007 | ||
Hans Langer · Hans Lengerer · Heinz Langer · Heinz Lenger · Heinz Lunzer