Polak, Ewa, Antoni Seredynski, and Krzysztof Przednowek. “Physical Fitness Profiles of Junior Athletes Practicing Selected Combat Sports”. Revista de Artes Marciales Asiáticas 11, no. 2s (September 29, 2016): 28–29. Accessed March 22, 2023. https://revistas.unileon.es/ojs/index.php/artesmarciales/article/view/4156.