@article{{GIIUNAM}{}, author = {Almanza, R.}, title = { Reflexiones sobre la energía solar}, journal = {Gaceta Instituto de Ingeniería, UNAM}, volume = {1}, number = {139}, year = {2019}, url = {http://gacetaii.iingen.unam.mx/GacetaII/index.php/gii/article/view/2624} }