Camino Vallhonrat, Xavi, Xavier Pujadas Martí, and Sacra Morejón Torné. “Young People and Sport in Vulnerable Neighborhoods. Analysis of the Impact of a Calisthenics in Barcelona”. Retos 70 (July 7, 2025): 600–613. Accessed November 7, 2026. https://www.revistaretos.org/index.php/retos/article/view/114536.