8Heeg S, Klagge B, Ossenbrügge J. Metropolitan cooperation in Europe: Theoretical issues and perspectives for urban networking. European Planning Studies, 2003, 11(2): 139-153.
9Jessop B. The rise of governance and the risks of failure: The case of economic development. International Social Science Journal, 1998, 50(1): 29-45.
10Ma L J C, Fan M. Urbanization from below: The growth of towns in Jiangsu, China. Urban Studies, 1994, 31: 1625-1645.