OTÁLVARO VERGARA, J. D. Effect of a structured training plan through modified games on the occupation of free spaces in offensive phase. VIREF Revista de Educación Física, [S. l.], v. 1, n. 1, p. 79–94, 2013. Disponível em: https://revistas.udea.edu.co/index.php/viref/article/view/15334. Acesso em: 2 apr. 2025.