Петрушин [Petrushyn D.] Д.; Черкашина [Cherkashina L.] Л. Perfection of speed-power internals for boxers 16–17. Slobozhanskyi Herald of Science and Sport, [S. l.], n. 4(31), p. 74–79, 2012. Disponível em: https://journals.uran.ua/index.php/1991-0177/article/view/21935. Acesso em: 10 may. 2024.