SOROKIN D.V. OPTIMIZATION OF SPEED QUALITIES IN SPRINTERS IN THE SENSITIVE PERIOD OF 14-17 YEARS. Theory and Practice of Physical Culture, [S. l.], n. 8, p. 20–22, 2025. Disponível em: http://tpfk.ru/index.php/TPPC/article/view/1421. Acesso em: 5 dec. 2025.