1. A group contingency for classroom management of emotionally disturbed children;Gallagher,1967
2. How to make a token system fail;Kuypers;Exceptional Children,1968
3. An application of conditioning techniques to the control of a hyperactive child;Patterson,1965
4. Controlling behavior in the severely retarded;Perline;American Journal of Mental Deficiency,1968
5. Effects of group contingent events upon classroom noise;Schmidt;Journal of Applied Behavior Analysis,1969