1. Developmental test of visuo-motor integration;Beery,1989
2. Dissociation between language and cognitive functions in Williams syndrome;Bellugi,1988
3. Williams syndrome: an unusual neuropsychological profile;Bellugi,1994
4. Longitudinal analysis of drawings by children with Williams syndrome: preliminary results;Bertrand;Vis Arts Res,1996
5. Drawing by children with Williams syndrome: a developmental perspective;Bertrand;Dev Neuropsychol,1997