Avelaneda Origuela M, Lopes da Silva C, Macedo Fraga EA. Educación Física y Comunidades Virtuales (Physical Education and Virtual Communities). Retos [Internet]. 2011 Jul. 1 [cited 2025 Sep. 22];20:26-9. Available from: http://207.180.252.49/index.php/retos/article/view/34619