Zhao X, Chen Y. Spatial Agglomeration and Diffusion of Population Based on a Regional Density Function Approach: A Case Study of Shandong Province in China. j. of geogr. res. [Internet]. 2023 Aug. 18 [cited 2024 May 17];6(3):61-80. Available from: https://journals.bilpubgroup.com/index.php/jgr/article/view/5826