Kumpula, Timo, Alfred Colpaert, Wang Qian, and Angela Manderscheid. “Remote sensing in inventory of high altitude pastures of the eastern Tibetan Plateau”. Rangifer 24, no. 4 (April 1, 2004): 53–63. Accessed April 19, 2024. https://septentrio.uit.no/index.php/rangifer/article/view/1724.