F. Trujillo-Romero, S. O. Caballero Morales, K.-L. . Flores-Rodriguez, C. Garcia-Capulin, and R. . Sanchez-Yanez, “A Reduced Spherical Model for Optimization of Image Recognition through 3D Color Histograms”, Int. Journal of COP and Infor., vol. 13, no. 3, pp. 43–55, Aug. 2022.