Бородай, Яна, and Артем Бородай. “BASIC PRINCIPLES OF COMPLEX FORMATION FOR WINTER SPORTS”. Modern engineering and innovative technologies 1, no. 07-01 (April 29, 2017): 87–91. Accessed November 23, 2024. https://moderntechno.de/index.php/meit/article/view/meit07-01-051.