González-Velázquez, V. E. (2020) «Modifications of the non-linear parameters of the heart rate variability related to the systematic practice of physical exercise», Revista Cubana de Investigaciones Biomédicas, 38(5). Disponible en: https://revibiomedica.sld.cu/index.php/ibi/article/view/542 (Accedido: 14 marzo 2026).