The planning of the psychological preparation process in volleyball athletes. An imperative for the state of optimal disposition(Rewiev). Revista científica Olimpia, [S. l.], v. 17, p. 140–149, 2020. Disponível em: https://revistas.udg.co.cu/index.php/olimpia/article/view/1400. Acesso em: 7 mar. 2026.