@article{{GIIUNAM}{}, author = {Nieva Sánchez, E.}, title = { La sostenibilidad}, journal = {Gaceta Instituto de Ingeniería, UNAM}, volume = {1}, number = {86}, year = {2017}, url = {http://gacetaii.iingen.unam.mx/GacetaII/index.php/gii/article/view/1514} }