VASHLYAEV, F. .; VASHLYAEVA, I. . Rating physical working capacity based on respiratory function. Theory and Practice of Physical Culture, [S. l.], n. 11, p. 12–14, 2021. Disponível em: http://tpf1610220.nichost.ru/index.php/TPPC/article/view/30. Acesso em: 2 feb. 2025.