1. Species characterization and speciation in Stylonychia/Oxytricha group (Ciliata, Hypotrichida, Oxytrichidae);Ammermann;Atti. Soc. Tose. Sei. Nat. Mem., Ser. B,,1985
2. Oral morphogenesis during transformation from microstome to macrostome in Tetrahymena vorax V2S;Buhse;Trans. Am. Microsc. Soc.,1966
3. An analysis of macrostome production in Tetrahymena vorax strain V2S-type;Buhse;J. Protozool,1966
4. Microstome-macrostome transformation in Tetrahymena vorax strain V2 type S induced by a transforming principle, stomatin;Buhse;Ibid.,1967
5. The effects of purine and pyrimidines upon transformation in Tetrahymena vorax, strain V2S;Butzel;Ibid.,1983