For citations:

Skripkina J.V., Lalykina J.A. PRINCIPLES OF FORMATION OF A MULTIFUNCTIONAL CENTERS FOR TRAINING EXTREME SPORTS IN KURSK. Proceedings of the Southwest State University. 2018;22(6):92-102. (In Russ.) https://doi.org/10.21869/2223-1560-2018-22-6-92-102