1. Air Resources BoardThe Air Pollution-Transportation Linkage, State of California. Sacramento, 1989, pp. 4–5.
2. California Report (1991)SCAG Finds South Coast Toll-Road Projects Conform with U.S. Clean Air Act, p. 4.
3. Cameron M (1991)Transportation Efficiency: Tackling Southern California's Air Pollution and Congestion, Environmental Defense Fund and Regional Institute of Southern California. Corridor Design Management Group (1990) Conceptual Design Report, San Joaquin Hills Transportation Corridor, TM-3-19.
4. Giuliano G & Small KA (1991) Subcenters in the Los Angeles Region,Regional Science and Urban Economics, Vol. 21, No. 2, pp. 163–182.
5. Keeler TE & Small KA (1977) Optimal Peak-Load Pricing, Investment, and Service Levels on Urban Expressways,Journal of Political Economy 85: 1–25.