Ruiz Sánchez, Annia, Rodrı́guez SalmonDaniela Sara, Sánchez Domı́nguezSandy, Yuri Alcántara Olivero, Fernández Garcı́aAdolfo Arsenio, Isabel Martén Powell, and Antonio Iván Ruiz Chaveco. 2021. “Influence of Physical Exercise on the Strengthening of Immunity. Mathematical model.: https://doi.org/10.5281/Zenodo.5728206”. Divulgaciones Matemáticas 22 (1), 40-51. https://produccioncientificaluz.org./index.php/divulgaciones/article/view/36558.