[7] Bennett R J. Administrative systems and economic spaces[J]. Regional Studies, 31, 323-336(1997).

[8] Rayon A. Administrative Divisions of Azerbaijan, Agdam, Ghost Town, Nagorno-Karabakh Republic. Anim Publishing, 20-25(2011).

[13] Liu Y, Yin G, Ma L J C. Local state and administrative urbanization in post-reform China: A case study of Hebi City, Henan province[J]. Cities, 29, 107-117(2012).

[14] Ahmadypour Z. The effect of pattern administrative divisions on the development of geographic: Case study: Zanjan province[J]. Spatial Planning, 14, 39-61(2011).

[15] Zhu J H, Chen X, Chen T. Spheres of urban influence and factors in Beijing-Tianjin-Hebei Metropolitan Region based on viewpoint of administrative division adjustment[J]. Chinese Geographical Science, 27, 709-721(2017).