Díaz-Parra, O., J. M. Xicotencatl-Pérez, J. C. Ramos-Fernández, Porfirio Espejel-Flores, Y. Toledo-Navarro, J. A. Ruiz-Vanoye, Eric Simancas-Acevedo, and Jaime Aguilar-Ortiz. “Smart White Cane for Visually Impaired People for Hearing Recreation in Tourist Environment”. International Journal of Combinatorial Optimization Problems and Informatics, vol. 14, no. 2, June 2023, pp. 3-17, https://ijcopi.org/ojs/article/view/348.