Mateu P, Inglés E. Relationship between sport participation and attendance at sporting events. A case study on the judo in Spain. Rev. artes marciales asiát. [Internet]. 2016Dec.30 [cited 2024Nov.29];11(2):99-111. Available from: https://revistas.unileon.es/ojs/index.php/artesmarciales/article/view/4785