Delgado Vásquez, Rosario Diomedes, Waymer A. Barreto V., and Teodoro L. Acevedo T. “Existence and Construction of the Peano Selection for a Multivalued Function”. Selecciones Matemáticas 11, no. 02 (December 28, 2024): 409 - 416. Accessed March 20, 2025. https://revistas.unitru.edu.pe/index.php/SSMM/article/view/6133.