| Titel | ISBN-13 (ISBN-10) | Erscheinungsjahr |
|---|---|---|
| Comparative Taxonomic Studies on the Genus Klebsormidium in Europe | 978-3-437-30823-9 (3-437-30823-8) | 1996 |
| Taxonomic Studies in the Genus Heterococcus : A Combined Cultural and Electron Microscopy Study | 978-3-437-30687-7 (3-437-30687-1) | 1992 |