FONSECA, R. G.; CORRÊA, A. A.; SILVA, P. M. DA; SORIANO, J. B. <b>Professional knowledge in physical education intervention: an ethnographic case study</b&gt; - DOI: 10.4025/reveducfis.v20i3.5269. Journal of Physical Education , v. 20, n. 3, p. 367-380, 5 Oct. 2009.