FryW.KelleherR. T.CookL.A mathematical index of performance on fixed-interval schedules of reinforcement. Journal of the Experimental Analysis of Behavior, 1960, 3, 193–199.
2.
GleitmanH.BernheimJ. W.Retention of fixed-interval performance in rats. Journal of Comparative and Physiological Psychology, 1963, 56, 839–841.
3.
GollubL. R.The relations among measures of performance on fixed-interval schedules. Journal of the Experimental Analysis of Behavior, 1964, 7, 337–343.
4.
HerrnsteinR. J.MorseW. H.Effects of pentobarbital on intermittently reinforced behavior. Science, 1957, 125, 929–931.
