1. American Psychiatric Association (APA) (2000) Diagnostic and statistical manual of mental disorders (DSM-IV-TR), 4th edn.., text revision. American Psychiatric Association, Washington, DC
2. Berlekamp ER, Conway JH, Guy RK (1982) Winning ways, vol 2. Academic, New York
3. Charman T, Pellicano E, Peacey LV, Peacey N, Forward K, Dockrell J (2011) What is good practice in autism education? Autism Education Trust, London
4. Chiang H-M, Lin Y-H (2007) Mathematical ability of students with Asperger syndrome and high-functioning autism. Autism 11:547–556
5. Cowan R, Frith C (2009) Do calendrical savants use calculation to answer date questions? A functional magnetic resonance imaging study. Philos Trans R Soc B 364:1417–1424