M. Alvariñas-Villaverde, E. Giménez-de Ory, B. Toja-Reboredo, and M. González-Valeiro, “Sport practice with friends and perceived physical competence as predictors of physical activity in adolescents”, J. Hum. Sport Exerc., vol. 18, no. 1, pp. 46–58, Jan. 2023.