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Esteban Tlelo-Cuautle
INAOE, Department of Electronics, Tonantzintla, Puebla 72840, México
Hugo C. Ramos-López
Instituto Tecnológico de Tuxtla Gutiérrez, Chiapas, México
Mauro Sánchez-Sánchez
Universidad del Papaloapan, Campus Loma Bonita, Oaxaca, México
Ana D. Pano-Azucena
Universidad Politécnica de Puebla, Puebla, México
Luis A. Sánchez-Gaspariano
Universidad Politécnica de Puebla, Puebla, México
José C. Núñez-Pérez
IPN-CITEDI, Tijuana, México,
Jorge L. Camas-Anzueto
Instituto Tecnológico de Tuxtla Gutiérrez, Chiapas, México