سايح عبد الرحمان; زياني زكرياء; كمال بن الدين. The effect of physical effort according to energy sources on the development of some physical attributes (speed - endurance of speed) according to the playing centers in U17 football. Journal of Sport Science Technology and Physical Activities, [S. l.], v. 21, n. 1, p. 221–231, 2024. Disponível em: https://revue.univ-mosta.dz/index.php/jsstpa/article/view/542. Acesso em: 13 jan. 2026.