MARIANO, C. R. E.; DAVID, A. C. DE. <b>Space-temporal variables of walking in children from 3 to 8 years at slow, free and fast speed</b&gt; - doi: 10.4025/reveducfis.v21i4.8309. Journal of Physical Education , v. 21, n. 4, p. 625-632, 5 Dec. 2010.