1. Aubin, J.-P. and A. Cellina (1984) Differential Inclusions, Springer-Verlag (Grundlehren der Math. Wissenschaften, Vol. 264, pp. 1–342)
2. Aubin, J.-P. and F.H. Clarke (1977) Monotone Invariant Solutions to differential Inclusions, J. London Math. Soc., 16, pp. 357–366
3. Aubin, J.-P. and I. Ekeland, (1984) Applied Nonlinear Analysis, Wiley-Interscience
4. Aubin, J.-P., H. Frankowska and C. Olech (1986) Controllability of convex processes, SIAM J. of Control and Optimization
5. Clarke, F.H. (1983) Optimization and Nonsmooth Analysis, Wiley-Interscience