Шульга [Shul’ga A.] О. С.; Саварец [Savarets A.] А. Characteristics of non-Olympic sports competitions (for example of the first category). Slobozhanskyi Herald of Science and Sport, [S. l.], n. 5-2(33), p. 54–57, 2012. Disponível em: https://journals.uran.ua/index.php/1991-0177/article/view/21596. Acesso em: 7 may. 2024.