1. American Psychiatric Association. (1980). Diagnostic and statistical manual of mental disorders (3rd ed.). Washington, DC: Author.
2. American Psychiatric Association. (2004). Diagnostic and statistical manual of mental disorders (4th ed., text revision). Washington, DC: Author.
3. American Psychiatric Association. (2014). Diagnostic and statistical manual of mental disorders (5th ed.). Washington, DC: Author.
4. Blacher, J., & Christensen, L. (2011). Sowing the seeds of the autism field: Leo Kanner (1943). Intellectual and Developmental Disabilities, 49(3), 172–191.
5. Bryson, S. E., Rogers, S. J., & Fombonne, E. (2003). In review. Canadian Journal of Psychiatry, 48, 506–516.