1. The Interstate Highway System;Friedlander,1965
2. Road congestion: A reconsideration of pricing theory;Henderson;J. Urban Econ.,1974
3. The size and types of cities;Henderson;Amer. Econ. Rev.,1974
4. The Urban Transporation Problem;Meyer,1965
5. On the economics of road congestion;Johnson;Econometrica,1964