1. World Health Organization (1992) The ICD-10 classification of mental and behavioural disorders. Clinical descriptions and diagnostic guidelines. WHO, Geneva
2. Weibel H, Metzger JY (2005) Psychoses délirantes aiguës. EMC Psychiatr 21:40–61
3. Leonhard K (1957) Aufteilung der endogenen Psychosen (The classification of endogenous psychoses, Irvington, New York, 1979). Akademie Verlag, Jena
4. Strömgren E (1974) Psychogenic psychoses. In: Hirsh RS, Shepherd M (eds) Themes and variations in European psychiatry. Wright, Bristol, pp 97–117
5. Langfeldt G (1939) The schizophreniform states. Munksgaard, Copenhagen