R. S. Pereira, V. L. Nista-Piccolo, and S. A. P. dos Santos, “<b>Physical education in the initial stages of elementary school: the look of a polyvalent teacher</b&gt; - DOI: 10.4025/reveducfis.v20i3.6783”, JPhysEduc, vol. 20, no. 3, pp. 343-352, Oct. 2009.