1. Mating type determination in stock 51, syngen 4, of Paramecium aurelia grown in axenic culture;Butzel;J. Protozool,1968
2. Abnormal cytological events and mating type determination patterns in doublet cells of stock 51, syngen 4, of Paramecium aurelia following conjugation in axenic medium;Butzel;J. Protozool,1970
3. Autoradiographic studies of the differential incorporation of glycine. and purine and pyrimidine ribosides by Paramecium aurelia;Butzel;J. Gen. Microbiol,1963
4. Radioisotopes in Biology and Agriculture
5. Mise en évidence de l'action d'un facteur externe le chlorure de calcium sur la différentiation du macronucleus chez Paramecium aurelia (souche 60, variété I);Hallet;J. Protozool,1971