Waterhouse, David B., and Carl De Crée. “Shin-gi-tai as a guiding principle in Kodokan judo. Yet, another example of historical reinvention?”. Revista de Artes Marciales Asiáticas 20, no. 1 (April 16, 2025): 55–76. Accessed December 5, 2025. https://revpubli.unileon.es/ojs/index.php/artesmarciales/article/view/8479.