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. 2021. “A Systematic Review of Intervention Programs That Produced Changes in Speed and Explosive Strength in Youth Footballers”. European Journal of Translational Myology 31 (3). https://doi.org/10.4081/ejtm.2021.9692.