Sun, Guibo, Robert Haining, Hui Lin, Nicolas M. Oreskovic, and Jie He. “Comparing the Perception With the Reality of Walking in a Hilly Environment: An Accessibility Method Applied to a University Campus in Hong Kong”. Geospatial Health 10, no. 1 (May 18, 2015). Accessed April 26, 2024. https://www.geospatialhealth.net/gh/article/view/340.