Alzate, D., Rojas, E., Mosquera, J. and Ramón, J. 2015. Climate change and climate variability for the period 1981-2010 in the basins of the Zulia and Pamplonita rivers, Norte de Santander – Colombia. Luna Azul. 40 (Jan. 2015), 124–153. DOI:https://doi.org/10.17151/10.17151/luaz.2015.40.10.