Trejos MitreD. B., Navarro GuerraH., Arencibia AbreusC., and Blanco SantanaL. G. “Propulsive Actions Classification of Underwater Dolphin Kick in Swimming”. Acción, Vol. 17, no. Especial, Dec. 2021, http://200.14.49.137/index.php/accion/article/view/188.