Folgado dos Santos, Jorge Manuel, João Petrica, João Serrano, Marco Batista, Samuel Honório, Afonso Lercas, and Luis Maia. “Attention in Physical Education Classes: Differences Between Colletive Sports (Atención En Las Clases De educación física: Diferencias Entre Deportes Colectivos)”. Retos 37 (January 1, 2020): 129–133. Accessed June 10, 2026. https://revistaretos.org/index.php/retos/article/view/71533.