| author: | Sopott-Ehlers B, Ehlers U |
| title: | Spermatozoa of Psammomacrostomum turbanelloides (Plathelminthes, Macrostomida)- sub-microscopic anatomy and phylogenetic implications. |
| publication: | Invertebrate Reproduction & Development. 39(2): 81-86 |
| year: | 2001 |