Gómez Muñoz, M. A., Chalapud-Nárvaez, L. M., & Lasso-Quilindo, C. A. (2025). Effects of concurrent training on physical fitness parameters and specific performance in young swimmers competing in 50 and 100 meter freestyle events. Retos, 71, 302-315. https://doi.org/10.47197/retos.v71.111939