Gutiérrez-García, Carlos, Joseph R. Svinth, Juan Carlos Martín, and Eugenio Izquierdo. “Combat Sports (1934), by Captain Bádenas-Padilla: analysis of an outstanding handbook in the modern history of martial arts and combat sports in Spain”. Revista de Artes Marciales Asiáticas 11, no. 2s (September 29, 2016): 126–127. Accessed January 17, 2025. https://revpubli.unileon.es/index.php/artesmarciales/article/view/4203.