1. Abravanel, E. (1972a). How children combine vision and touch when perceiving the shape of objects. Perception and Psychophysics, 12, 171-
2. Abravanel, E. (1972b). Short-term memory for shape information processed intra-and intermodally at three ages. Perceptual and Motor Skills, 35, 419–425
3. Agostoni, E., Coletti, A., Orlando, G., Tredici, G. (1983). Apraxia in deep cerebral lesions. Journal of Neurology, Neurosurgery, and Psychiatry 46, 804–808
4. Ayres, A. J. (1965). Pattern of perceptual-motor dysfunction in children: A factor analysis study. Perceptual and Motor Skills, 20, 335–368
5. Ayres, A. J. (1966). Interrelationships among perceptual-motor functions in children. American Journal of Occupational Therapy, 20, 68–71