Instrumental study of motor functions in children under school age using the stabilotest and ataksitest devices - T. N. Osipenko; I. A. Skvortsov; E. V. Matveev; D. S. Nadezhdin; A. A. Vasil'ev; E. G. Kovaleva; G. N. Zaitseva (Biomedical Engineering, 1997)