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3. 3) Bob Walter eds, Sustainable Cities-Concepts and Strategies for Eco-City Development, Los Angels: Eco-Home Media
4. Sustainable Cities or Cities that Contribute to Sustainable Development?
5. 5) D.Banister, S.Watson and C.Wood, Sustainable Cities: transport, energy, and urban form, Environment and Planning B: Planning and Design, Vol. 24, pp.125-143