1. Partial reinforcement effects on vigor and persistence;Amsel,1967
2. Positive induction, behavioral contrast, and generalization of inhibition in discrimination learning;Amsel,1971
3. Behavioral habituation, counterconditioning, and persistence;Amsel,1972
4. An adaptation-level interpretation of reinforcement;Bevan;Perceptual and Motor Skills,1966
5. The contextual basis of behavior;Bevan;American Psychologist,1968