American Psychiatric Association. Diagnostic and statistical manual of mental disorders. 2000
CARVER, L. J. Developmental and neural bases of face recognition in autism. Molecular Psychiatry. 2002, 7, Suppl. 2, S18-S20
CLARK, E. V. From gesture to word : On the natural history of deixis in language acquisition. Human growth and development-Wolfson College Lectures, 1976. 1978, 85-120
DAWSON, G. Brief report : Neuropsychology of autism : A report on the state of the science. Journal of Autism and Developmental Disorders. 1996, 26, 179-184