1. Abels, D. (1961). Konzentrations-Verlaufs-Test (KVT). Göttingen: Hogrefe.
2. Ackenheil, M., Dieterle, D. M., Eben, E., Pakesch, G. (1985). Beurteilung der Minussymptomatik (SANS)- Münchener Version. Universität München.
3. Social skills training with schizophrenics: A meta-analytic evaluation.
4. Treatment of Cognitive Dysfunctions and Behavioral Deficits in Schizophrenia
5. Brenner, H. D., Roder, V., Hodel, B., Kienzle, N., Reed, D., Liberman, R. P. (1994). Integrated psychological therapy for schizophrenic patients. Seattle WA: Hogrefe & Huber.