@article{{GIIUNAM}{}, author = {Lozano, A.}, title = { Coordinación de Sistemas}, journal = {Gaceta Instituto de Ingeniería, UNAM}, volume = {1}, number = {17}, year = {2017}, url = {http://gacetaii.iingen.unam.mx/GacetaII/index.php/gii/article/view/2328} }