Nikolay L. Ponomarev, Anatoly A. Opletin, Aleksandr N. Legotkin, Valery D. Panachev, Leonid A. Zelenin,. 2019. «System of Exercises for Development of students’ Motor Abilities». Opción 35 (agosto), 719-33. https://produccioncientificaluz.org/index.php/opcion/article/view/24726.