1. Arthur G, Judith G, 1966. Christaller’s Central Place Theory. Journal of Geography, 65(5): 220–226.
2. Chen C, Gao J L, Chen J L, 2017. Institutional changes, land use dynamics, and the transition of rural settlements in suburban China: A case study of Huishan District in Wuxi city. Habitat International, 70: 24–33.
3. Fan S Y, 1994. The evolution mechanism & study contents on the spatial structure about rural settlement. Journal of Northwest University (Natural Science Edition), 24(4): 295–304. (in Chinese)
4. Guo X D, Ma L B, Zhang Q Y, 2013. The spatial distribution characteristics and the basic types of rural settlement in loess hilly area: Taking Qin’an County of Gansu Province as a case. Scientia Geographica Sinica, 33(1): 45–51. (in Chinese)
5. Hai B B, Li X J, Xu J W, 2013. Spatio-temporal evolution of rural settlements in Gongyi. Geographical Research, 32(12): 2257–2269. (in Chinese)