Rechenmacher, A., M. Immitzer, and H.QVacik H. 2018. “Assessing the Potential Tree Line and Suitable Areas for Afforestation in the Chong-Kemin National Park, Kyrgyzstan”. International Journal of Geoinformatics 11 (1). https://journals.sfu.ca/ijg/index.php/journal/article/view/1117.