Athena Hayes

Linguistic and cognitive functioning and autism symptoms in young children with fragile X syndrome.

S. Hepburn, S. Rogers, R. Hagerman, 2004, American journal of mental retardation : AJMR.

Teaching Young Nonverbal Children with Autism Useful Speech: A Pilot Study of the Denver Model and PROMPT Interventions

Sally J. Rogers, Renee Charlifue-Smith, S. Hepburn, 2006, Journal of autism and developmental disorders.