1. Aashtiani, H. Z., The Multi-Modal Traffic Assignment Problem, PhD thesis, Alfred P. Sloan School of Management. Cambridge, Mass.: MIT Press, 1979.
2. Aashtiani, H. Z. and Magnanti, T. L., Equilibria on a Congested Transportation Network. SIAM Journal on Algebraic and Discrete Methods, 2 (1981), pp. 213–226.
3. Abdulaal, M. and Le Blanc, L. J., Continuous Equilibrium Network Design Models. Transportation Research, 13B (1979a), pp. 19–32.
4. Abdulaal, M. and Le Blanc, L. J., Methods for Combining Modal Split and Equilibrium Assignment Models. Transportation Science, 13 (1979b), pp. 292–314.
5. Ahuja, R. K., Magnanti, T. L., and Orlin, J. B., Network Flows: Theory, Algorithms, and Applications. Englewood Cliffs, New Jersey: Prentice-Hall, 1993.