1. Chandler, J. P. STEPIT: finds local minima of a smooth function of several parameters. (CPA 312) Behavioral Science, 1969, 14, 81–82.
2. Church, R. M. Response suppression. In B. A. Campbell and R. M. Church (Eds.), Punishment and aversive behavior. New York: Appleton-Century-Crofts, 1969.
3. Clark, C. G. Manipulation of CR-contingent UCS intensity in human eyelid conditioning: A two-phase model analysis. Unpublished M.S. thesis, University of Utah, 1974.
4. Gormezano, I., & Coleman, S. R. The law of effect and CR contingent modification of the UCS. Conditional Reflex, 1973, 8, 41–56.
5. Grant, D. A. Classical and operant conditioning. In A. W. Melton (Ed.), Categories of human learning. New York: Academic Press, 1964.