Gatling, Lance. “The First Kodokan Judo Kata International Competition and its Katas”. Revista de Artes Marciales Asiáticas 3, no. 2 (July 19, 2012): 80–89. Accessed February 24, 2024. https://revpubli.unileon.es/index.php/artesmarciales/article/view/363.