F. Zúñiga Ugalde, J. Huertas Delgado, G. Guerrero Obando, J. Dörner Fernández, J. Sarasty Bravo, and H. Burbano Orjuela, “Soil morphological properties related to Páramo ecosystems in Nariño, Southern Colombia”, Terra Latinoam, vol. 36, no. 2, pp. 183–196, Apr. 2018.