1. The reinforcement of cooperation between children;Azrin;J. abnorm. soc. Psychol.,1956
2. Experimental studies of child behavior, normal and deviant;Bijou,1965
3. Ferster C.B. An operant reinforcement analysis of infantile autism. Am. J. Psychother. (In press.)
4. Ferster C.B. Operant reinforcement in the natural milieu. Exceptional Children. In Press.
5. Punishment of Ss responding in matching to sample by time out from positive reinforcement;Ferster;J. exp. Analysis. Behav.,1961