1Donna Erickson. MetroGreen:Connecting Open Space in North American Cities[M]. Washington,DC:Island Press,2006.10 - 41.
2Catharine Ward Thompson. Urban Open Space in the 21 st Century [J]. Landscape and Urban Planning, 2002(60):59 - 72.
3Royal Commission on the Future of the Toronto Waterfront. Regeneration: Toronto's Waterfront and the Sustainable City,Final Report[R].Toronto, June 1997 : 24 - 43.
4Northeastern Illinois Planning Commission and Openlands Project, Regional Greenways and Trails Implementation Program: An Update of the Northeastern Illinois Regional Greenways Plan[R]. City of Illinois, June 2002: 54 - 60.
5Donna L. Erickson. The Relationship of Historic City Form and Contemporary Greenway Implementation:A Comparison of Milwaukee, Wisconsin (USA) and Ottawa, Ontario (Canada) [J].Landscape and Urban Planning,2004(68): 199 - 221.
6Southeastern Wisconsin Regional Planning Commission. A Park and Open Space Plan for Milwaukee County Community Assistance Planning Report No.132 [R].City of Milwaukee, 1996:112 - 118.
7Dept. of Engineering Works. Land and Water Background Report:State of the Environment Reporting Program[R]. City of Ottawa, 1998 : 67 - 80.
8James Taylor, Cecelia Paine, John FitzGibbon. From Greenbelt to Greenways: Four Canadian Case Studies[J]. Landscape and Urban Planning, 1995 ( 33):47 - 64.
9Organization ofpetroletLrn Exporting Countries. Open Space Plan [R]. City of Calgary, July 2007: 87 - 98.
10Denver Regional Council of Government. Open Space Element of the Metro Vision 2020 Plan:Resource and Opportunities[R]. City of Denver, July 2004: 223 - 254.