Moya Rodríguez, Jorge L., José Alberto Velázquez Pérez, Rafael Goytisolo Espinosa, and Edimir Betancourt Castañeda. “Calculation Methods for Spur Gears With Symmetrical and Asymmetrical Teeth”. Centro Azúcar Journal 33, no. 1 (January 1, 2006). Accessed June 6, 2025. http://centroazucar.uclv.edu.cu/index.php/centro_azucar/article/view/606.