1. A set of eight parallel forms of the digit symbol test;Brown,1969
2. The effects of instruction and reinsforcement versus a multifaceted self-control procedure on the modification and generalization of behavior in schizophrenics;Gresen,1974
3. Cognitive structure and pathology in associations of process and reactive schizophrenics;DeWolfe;Journal of Abnormal Psychology,1971
4. Brain and intelligence: A quantitative study of the frontal lobes;Halstead,1947
5. Process-reactive schizophrenics;Higgins;Journal of Nervous and Mental Disease,1969