EDITORIAL

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The magazine uses the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License.

Under this statement:

This journal is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. It can be copied, distributed and transmitted publicly as long as the author and source are cited (Revista Torreón Universitario), it should not be modified or used for any commercial purpose. The full license can be found at http://creativecommons.org/licenses/by-nc-nd/4.0/.