Топорков [Toporkov А.] О. М. Еxtremely-specific features Ski sporting tourism. Slobozhanskyi Herald of Science and Sport, [S. l.], n. 4(31), p. 49–55, 2012. Disponível em: https://journals.uran.ua/index.php/1991-0177/article/view/21928. Acesso em: 23 dec. 2024.