1. Urban spatial structure;Anas;Journal of Economic Literature,1998
2. Blickstein , S. Hanson , S. 2000 Critical mass: Forging a politics of sustainable mobility in the information age
3. American metropolitan evolution;Borchert;Geographical Review,1967
4. The compact city and transport energy consumption;Breheny;Transactions of the Institute of British Geographers,1995