Cossio-Bolaños, Marco, Ruben Vidal-Espinoza, Camilo Urra Albornoz, Daniel Leite Portella, Sebastian Vega-Novoa, Jorge Mendez-Cornejo, Jose Fuentes Lopez, and Rossana Gomez-Campos. “A Systematic Review of Intervention Programs That Produced Changes in Speed and Explosive Strength in Youth Footballers”. European Journal of Translational Myology 31, no. 3 (August 6, 2021). Accessed April 29, 2024. https://www.pagepressjournals.org/bam/article/view/9692.