Kuchin R.V., Nenenko N.D., Stogov M.V., and Tolokova M.P. “Mineral Density of Skeletal Bones in Persons Participating in Northern Complex Sports”. Theory and Practice of Physical Culture, no. 8 (November 5, 2024): 56–58. Accessed November 23, 2024. http://tpfk.ru/index.php/TPPC/article/view/1100.