“Demandas Físicas en Jugadores Semiprofesionales de Fútbol: ¿se Entrena Igual Que Se Compite?. (Physical Demands in Semi-Professional Football Players: Is Training Carried Out the Same As Competition?)”. Cultura, Ciencia Y Deporte, vol. 6, no. 17, May 2012, pp. 121-7, https://doi.org/10.12800/ccd.v6i17.39.