Indicators of selection in the middle fund and fund athletes of eide Pedro Batista Fonseca category 12 - 13 and 14 - 15 years of the province of Granma (Original). rev_olimpia. 2019;14(45):152-165. Accessed March 7, 2026. https://revistas.udg.co.cu/index.php/olimpia/article/view/845