1. Cytologische und genetische Untersuchungen an dem Ciliaten Stylonychia mytilus Ehrenberg;Ammermann;Arch. Protistenkd.,1965
2. The micronucleus of the ciliate Stylonychia mytilus, its nucleic acid synthesis and its function;Ammermann;Exp. Cell Res.,1970
3. Characterization of two sibling species of the genus Stylonychia (Ciliata, Hypotricha): S. mytilus Ehrenberg 1838 and S. lemnae n. sp. I. Morphology and reproductive behavior;Ammermann;J. Protozool.,1983
4. The development of the macronucleus in the ciliated protozoan;Ammermann;Stylonychia mytilus. Chromosoma,1974
5. Methylated bases in the DNA of the ciliate;Ammermann;Stylonychia mytilus. Eur. J. Cell Biol.,1981