1. Vertical integration and assurance of markets;Green,1974
2. Efficient resource allocation in a multinucleated city with intermediate goods;Hartwick;Quarterly Journal of Economics,1974
3. The activity analysis approach to urban model building;Hartwick;Papers Regional Science Association,1974
4. The efficiency of spatial competition;Mills;Papers Regional Science Association,1970
5. Studies in the structure of the urban economy;Mills,1973