1. E. Kraepelin, 1893–1915, Psychiatrie, ein Lehrbuch für Studierende und Aerzte, 4th to 8th ed., Barth, Leipzig.
2. J.D. Hegarty, R.J. Baldessarini, M. Toben, C. Waternaux, and G. Oepen, 1994, One hundred years of schizophrenia: a meta-analysis of the outcome literature, Am. J. Psychiatry
151:1409–1416.
3. A. Riecher-Rössler, and W. Rössler, 1998, The course of schizophrenic psychoses: what do we really know? A selective review from an epidemiological perspective, Ear. Arch. Psychiatry Clin. Neurosci. 248:189–202.
4. P. Cohen, and J. Cohen, 1984, The clinician’s illusion, Arch. Gen. Psychiatry
41:1178–1183.
5. M. Bleuler, 1972, Die schizophrenen Geistesstörungen im Lichte langjähriger Kranken-und Familiengeschichten, Thieme, Stuttgart.