Boris Potschka · Constanze Potschka-Lang · Potsch Potschka
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Guitar Masterclass: Play In The Style of Jeff Beck: BD 11 | 978-3-933316-45-5 (3-933316-45-6) | 1999 | Pitti Piatkowski · Michael Morenga |
| Les constellations familiales: guérir le transgenerationnel | 978-2-84058-199-4 (2-84058-199-X) | 2001 | |