1. Nickel sulfate as an anesthetic for protozoa;Bovee;Turtox News,1958
2. Studies on thermal death in Paramecium;Doudoroff;J. exptl. Zool.,1936
3. Effects of adaptation to environment on chemotaxis of Paramecium caudatum;Dryl;Acta Biol. Exp.,1959
4. The vacuome and the neutral red reaction in Paramecium caudatum;Dunihue;Arch. Protistenk.,1931
5. Ni. Infusorien Im Dienste der Forshung und des Unterrichtes;Gelei;Biol. Centr.,1935