1. Behavioral Theories of Anxiety Disorders;Behavioral Theories and Treatment of Anxiety;1984
2. Backchaining of relaxation in the extinction of avoidance;Behaviour Research and Therapy;1974-09
3. Stimulus control of avoidance learning in fish.;Journal of Comparative and Physiological Psychology;1971
4. Species-Specific Defense Reactions;Aversive Conditioning and Learning;1971
5. NEGATIVE REINFORCEMENT WITHOUT SHOCK REDUCTION1;Journal of the Experimental Analysis of Behavior;1970-11