1. APA (American Psychiatric Associaton). Diagnostic and statistical manual of mental disorders. Fourth editon, Totally Revised, DSM-IV-TR. Washington, DC: American Psychiatric Association, 2000.
2. APA (American Psychiatric Associaton). Diagnostic and statistical manual of mental disorders. Fifth edition, DSM-5. Washington, DC: American Psychiatric Association.
3. Berckelaer-Onnes I van (2011). Inleiding: Autisme in volwassenheid. Nieuwe ontwikkelingen in de behandeling van autisme bij volwassenen. Lezing 14 juni 2011.
4. Bildt A de, Sytema S, Kraijer D, et al. Prevalence of pervasive developmental disorders in children and adolescents with mental retardation. J Child Psychol Psychiatry 2005;46:275-86.
5. Blankenship KM, Weston C (2012). Syndromes of intellectual disability. In: Gentile JP. Gillig PM (red). Psychiatry of intellectual disability: a practical manual. Chichester, UK: John Wiley & Sons, 2012;338-66.