LAZAREV, M. L. Phenomenon of discordance of mental and physical development of schoolchildren in the course of their educational activities. Pedagogika, [S. l.], v. 89, n. 6, p. 69–80, 2025. Disponível em: https://ojs.owebs.ru/pedagogika/article/view/30434. Acesso em: 8 nov. 2026.