Пасько [Vladlena Pas’ko] В. В., Подоляка [Оleg Podolyaka] О. Б., and Мартиросян [Artur Martyrosyan] А. А. “Model Features As the Basis of Managing Training Process Rugby Players 16-18 Years”. Slobozhanskyi Herald of Science and Sport, no. 4(37), Oct. 2013, pp. 47-55, https://journals.uran.ua/index.php/1991-0177/article/view/21001.