GUBA V.P.; LEVUSHKIN S.P.; LYAKH V.I. Approaches to the study of progress, monitoring of sports training and selection of athletes in a sports context. Theory and Practice of Physical Culture, [S. l.], n. 9, p. 3–7, 2025. Disponível em: http://tpfk.ru/index.php/TPPC/article/view/1444. Acesso em: 5 dec. 2025.