DEMARI, JOVIR LUIS, and MARCO AURÉLIO VAZ. 2014. “THE INFLUENCE OF THE FORCE AND FLEXIBILITY IN THE BEATING OF LEGS AND ITS RELATION WITH THE TOTAL PERFORMANCE OF SWIMMERS OF 100 METERS I SWIM CRAWL”. Fiep Bulletin - Online 77 (1). https://www.fiepbulletin.net/fiepbulletin/article/view/4070.