2015. Analysis of the accuracy of the digital model of area SRTM-30 for Colombia using information IGAC and IDEAM: Accuracy analysis of the digital terrain model for Colombia. Revista de Investigaciones Universidad del Quindío. 27, 1 (Sep. 2015), 30–38. DOI:https://doi.org/10.33975/riuq.vol27n1.20.