@article{article82407436,
title   = {The use of non-figurative material as a facilitator for oral communication of the children with Down syndrome during speech and language therapy},
author = {Limongi, Suelly Cecília Olivan and Carvallo, Renata Mota Mamede and Mustacchi, Zan},
year = {1999},
journal   = {Brazilian Journal of Dysmorphology and Speech-Hearing Disorders}
}