| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Volunteer, tome 1 | 978-2-84055-719-7 | 2002 | Benoît Springer |
| Volunteer, tome 2 | 978-2-84789-015-0 | 2004 | Benoit Springer |
| Volunteer, tome 2 | 978-2-84789-474-5 | 2004 | " |
| Volunteer, Tome 3 : | 978-2-7560-0323-8 | 2006 | Benoît Springer |