1. The relation of autogamy to senescence and rejuvenescence in P. aurelia;Sonneborn;J. Protozool,1954
2. Cellular changes with age in Paramecium;Sonneborn,1960
3. Age induced mutations in Paramecium;Sonneborn,1960
4. Genetics of aging and the life cycle in ciliates;Siegal,1967
5. Anatomy of Paramecium aurelia;Jurand,1969