Peer review is the responsibility of the Universidad Francisco de Paula Santander. This is an article under the license CC BY-ND (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Except where otherwise noted, this item's license is described as Peer review is the responsibility of the Universidad Francisco de Paula Santander. This is an article under the license CC BY-ND (http://creativecommons.org/licenses/by-nc-nd/4.0/).