Bartak, L. and Rutter, M.: Special educational treatment of autistic children: a comparative study: 1. Design of study and characteristics of units. J. Child Psychol. Psychiatry, 14; 161-179, 1973.
Honda, H., Shimizu, Y., Misumi, K. et al.: Cumulative incidence and prevalence of childhood autism in children in Japan. Br. J. Psychiatry, 169; 228-235, 1996.
Honda, H. and Shimizu, Y.: Early intervention to preschool children with autism in the community: the DISCOVERY approach in Yokohama, Japan. Autism, 6; 239-257, 2002.
Honda, H., Shimizu, Y., Imai, M. et al.: Cumulative incidence of childhood autism: a total population study of better accuracy and precision. Dev. Med. Child Neurol., 47; 10-18, 2005a.