1. Andrews, E.A. 1945. Stentor’s anchoring organs. J. Morph., 77, 219–232.
2. Chen, V.K. 1972. The electrophysiology of Stentor polymorphus: An approach to the study of behavior. Ph.D. thesis, State Univ. of New York at Buffalo, Dept. of Biophysics.
3. Doetsch, R.N. 1972. A unified theory of bacterial motile behavior. J. Theor. Biol., 35, 55–66.
4. Eckert, R. and Naitoh, Y. 1972. Bioelectric control of locomotion in the ciliates. J. Protozool., 19, 237–243.
5. Gelfan, S. 1927. The electrical conductivity of protoplasm and a new method of its determination. Univ. of Calif. Pub. in Zool., 29, 453–465.