BLANCO-HERNÁNDEZ, Uvencio José. An approach to doping in chess. Sport and Science, [S. l.], v. 4, n. 2, p. 137–142, 2019. DOI: 10.34982/2223.1773.2019.V4.No2.009. Disponível em: https://cienciaydeporte.reduc.edu.cu/index.php/cienciaydeporte/article/view/108. Acesso em: 18 may. 2024.