Copyright (c) 2019 Stefan Danilla Enei, Diego Quispe Valdes, Cristian Erazo Cortés, Patricio Andrades Cvitanic, Rolando Schulz Rosales, Claudia Albornoz Garrido, Sergio Sepulveda Pereira

URL de la licencia: https://creativecommons.org/licenses/by-sa/4.0