1. American Psychiatric Association: Diagnostic and Statistical Manual of Mental Disorders [DSM III], Third edition. 1980
2. : Dementia Praecox, or the Group of Schizophrenias. (Translated by J Zinkin) New York, International Universities Press, 1950
3. Definitions of schizophrenia: concordance and prediction of outcome
4. : Psychoses in epilepsy. In (eds): Handbook of Clinical Neurology. vol 15, The Epilepsies. Amsterdam, North-Holland, 1974, pp 593-610