BoyceD E, 1983, “Urban transportation network equilibrium and design models: Recent achievements and future prospects”, paper presented to the North American Meeting of the Regional Science Association, Chicago, November 1983; available in mimeograph from Department of Civil Engineering, University of Illinois, 208 North Romine Street, Urbana, IL 61801, USA
2.
EvansS, 1973, “A relationship between the gravity model for trip distribution and the transportation problem in linear programming”Transportation Research739–61
