1. Measuring urban sustainability;Alberti;Environmental Impact Assessment Review,1996
2. Eco-thermodynamics: economics and the second law;Ayres;Ecological Economics,1998
3. Production, consumption, and externalities;Ayres;American Economic Review,1969
4. The Ecological Footprint of Passenger Transport in Merseyside;Barrett,2001
5. A Material Flow Analysis and Ecological Footprint of York;Barrett,2002