7William Rees.Ecological footprint and appropriated carrying what urban economics leaves out[J].Environtment and Urbanization,1992,4(2):121-130.
8Hanley N,et al.Measuring sustainability:A time series of alternative indicator for Scotland[J].Ecological Economics,1999(28):55-73.
9Kurt Kratena."Ecological value added"in an integrated ecosystem-economy model-an indicator for sustainability[J].Ecological Economics,2004(48):189-200.
10Gerbens Leenes P W.A method to determine land requirements relating to food consumption patterns[J].Agriculture,Ecosytems and Environment,2002(90):47-58.