6Chang M, Imura H. Developing Private Finance Initiatives (PFI)/Public-Private Partnerships (PPP) for Urban Environmental Infrastructure in Asia[A]. Environmental System Research[C]. Vol.30. Committee on Environmental Systems, Japan Society of Civil Engineers. 2002.143-151.
7R Thackway, K Olsson.Public/private Partnerships and Protected Areas: Selected Australian Case Studies[J].Landscape and Urban Planning,1999,44: 87-97.