КАМАЕВ, О. Special aspects and implementation of the system approach into trainer’s professional activity. Slobozhanskyi Herald of Science and Sport, [S. l.], n. 3(59), p. 45–48, 2017. DOI: 10.15391/snsv.2017-3.008. Disponível em: https://journals.uran.ua/index.php/1991-0177/article/view/104522. Acesso em: 4 may. 2024.