Ektvedt, Tone Marie, Ole Reidar Vetaas, and Anders Lundberg. “Land-Cover Changes During the past 50 Years in the Semi-Arid Tropical Forest Region of Northern Peru”. ERDKUNDE 66, no. 1 (March 31, 2012): 57–75. Accessed April 30, 2025. https://www.erdkunde.uni-bonn.de/article/view/2700.