| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Cost 819: Entomopathogenic Nematodes: Activity Report 1994 | 978-92-827-4205-1 (92-827-4205-9) | 1995 | Jean-Pierre Masson |
| Cost 819: Entomopathogenic Nematodes: Activity Report 1995 | 978-92-827-8297-2 (92-827-8297-2) | 1997 | " |
R. E. · R. Ehlers · R.-U. Ehlers · R. Udo · U. Ehlers