doi dblp A methodology for character recognition and revision of the linear equations solving procedure Cristina Guevara Neri | Osslan Osiris Vergara-Villegas | Vianey Guadalupe Cruz Sánchez | Humberto de Jesús Ochoa Domínguez | Manuel Nandayapa | Juan Humberto Sossa Azuela 2023 Volume 60 Issue 1