1. J.P. Aubin and A. Cellina,Differential Inclusions (Springer, Berlin, 1984).
2. M. Beckmann, C.B. McGuire and C.B. Winsten,Studies in the Economics of Transportation (Yale University Press, New Haven, CT, 1956).
3. D. Bernstein, Programmability of continuous and discrete network equilibria, PhD Thesis, University of Pennsylvania, Philadelphia, PA (1990).
4. P. Billingsley,Convergence of Probability Measures (Wiley, New York, 1968).
5. K.C. Border,Fixed Point Theorems with Applications to Economics and Game Theory (Cambridge University Press, Cambridge, England, 1985).