Exploring the Evolution of the Accessibility of Educational Facilities and Its Influencing Factors in Mountainous Areas: A Case Study of the Rocky Desertification Area in Yunnan, Guangxi, and Guizhou. - Lingling Yao; Minjuan Lv; Tao Li; Donghua Wang; Xiaoshu Cao (ISPRS Int. J. Geo Inf., 2022)