Yo-Yo intermittent recovery test level 2: Cardiorespiratory response and performance in professional soccer players, comparison between under 20 and over 20 years old players - Cabrera Hernández, M. A.; Tafur Tascon, L. J.; García-Corzo, S. A.; Arias Londoño, H.; Quiñonez Sánchez, A.; Carreño Cano, G.; Hurtado Gutiérrez, H.; Tejada Rojas, C. X. (Journal of Human Sport & Exercise, 2018)