1. American Psychiatric Association (1980). Diagnostic and statistical manual of mental disorders (3rd ed.). Washington, DC: Author.
2. American Psychiatric Association (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: Author.
3. Asperger, H. (1944). Die “autistischen Psychopathen” im Kindesalter. Archiv für Psychiatrie und Nervenkrankheiten, 117, 76–136.
4. Asperger, H. (1961). Heilpaedagogik (3rd ed., pp. 200–205). Berlin: Springer.
5. Asperger, H. (1979). Problems of infantile autism. Communication, 13, 45–52.