GROSHEVIHIN, I. .; GRIGAN, S. . Analysis of the reasons for the decline in the level of physical fitness of students. Theory and Practice of Physical Culture, [S. l.], n. 1, p. 52–55, 2026. Disponível em: http://tpf1610220.nichost.ru/index.php/TPPC/article/view/1570. Acesso em: 4 feb. 2026.