Zarauz Sancho, Antonio, and Francisco Ruiz-Juan. “Variables Predictoras De La adicción Al Entrenamiento En Atletas Veteranos españoles (Predictor Variables of Addiction to Training in Spanish Master Athletes)”. Retos 24 (July 1, 2013): 33–35. Accessed September 22, 2025. http://207.180.252.49/index.php/retos/article/view/34520.