1. H. Attouch,Variational Convergence for Functions and Operators (Pitman, Boston, MA, 1984).
2. S.P. Bradley, A.C. Hax, and T.L. Magnanti,Applied Mathematical Programming (Addison-Wesley, Reading, MA, 1977).
3. R. Correa and C. Lemaréchal, “Convergence of some algorithms for convex minimization”,Mathematical Programming 62 (1993) 261–275.
4. Y.M. Ermoliev and A.A. Gaivoronski, “Stochastic quasigradient methods for optimization of discrete event systems”,Annals of Operations Research 39 (1992) 1–39.
5. B.-R. Fu, “Modeling and analysis of discrete tandem production lines using continuous flow models”, Ph.D. Dissertation (Department of Industrial Engineering, University of Wisconsin-Madison (Madison, WI, 1996).