1. A comprehensive evaluation of fifty cases of cerebral palsy;Wolfe, W.G.;J Speech Hearing Dis,1950
2. Intraoral breath pressure in cerebral palsy;Hardy, J.C.;J Speech Hearing Dis
3. Lung function of athetoid and spastic quadriplegic children;Hardy, J.C.;Dev Med Child Neurol,1964
4. Suggestions for physiological research in dysarthria;Hardy, J.C.;Cortex,1967
5. Dysarthria in cerebral palsy;Clement, M.; Twitchell, T.E.;J Speech Hearing Dis,1959