RUIZ-JUAN, F.; ZARAUZ SANCHO, A. Ansiedad en maratonianos en función de variables socio-demográficas (Anxiety in marathoners based on socio-demographic variables). Retos, [S. l.], v. 25, p. 28–31, 2014. DOI: 10.47197/retos.v0i25.34470. Disponível em: https://recyt.fecyt.es/index.php/retos/article/view/34470. Acesso em: 31 ene. 2023.