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 Nov. 1];20:26-9. Available from: http://www.revistaretos.org/index.php/retos/article/view/34619