1. Matson JL, Kozlowski AM. The increasing prevalence of autism spectrum disorders. Res Autism Spectr Disord. 2011;5(1):418–25.
2. World Health Organization. ICD-11 international classification of diseases (11th rev.). 2018.
https://icd.who.int/
(l.v. 10/3/2019).
3. World Health Organisation. International classification of diseases and related health problems (10th rev., ICD-10). Geneva: World Health Organisation; 1992.
4. APA—American Psychiatric Association. Diagnostic and statistical manual of mental disorders (3rd edition) (DSM-III). Washington, DC: American Psychiatric Association; 1980.
5. Greenspan S, Switzky HN. Forty-four years of AAMR manuals. In: Switzky HN, Greenspan S, editors. What is mental retardation?: ideas for an evolving disability in the 21st century. Washington, DC: AAMR; 2006.