1.

Rockafellar, R. T.: Proto-differentiability of set-valued mappings and its applications in optimization, in H. Attouch*et al.* (eds.),*Analyse Non Linéaire*, Gauthier-Villars, Paris 1989, pp. 449–482.

2.

Poliquin R. A. and Rockafellar, R. T.: Amenable functions in optimization, F. Giannessi (ed.) in*Nonsmooth Optimization Methods and Applications*, Gordon & Breach, Philadelphia, 1992, pp. 338–353.

3.

Rockafellar, R. T.: Nonsmooth analysis and parametric optimization, in A. Cellina (ed.),*Methods of Nonconvex Analysis* Lecture Notes in Math. 1446 Springer-Verlag, New York, 1990, pp. 137–151.

4.

Rockafellar, R. T.: Perturbation of generalized Kuhn-Tucker points in finite dimensional optimization, in F. H. Clarke*et al.* (eds.),*Nonsmooth Optimization and Related Topics*, Plenum Press, New York, 1989, pp. 393–402.

5.

Poliquin, R. A.: Proto-differentiation of subgradient set-valued mappings,*Canad. J. Math.*
**42** (1990), 520–532.

6.

Rockafellar, R. T.: First- and second-order epi-differentiability in nonlinear programming,*Trans. Amer. Math. Soc.*
**307** (1988), 75–107.

7.

Rockafellar, R. T.: Second-order optimality conditions in nonlinear programming obtained by way of epi-derivatives,*Math. Oper. Research*
**14** (1989), 462–484.

8.

Poliquin R. A. and Rockafellar, R. T.: A calculus of epi-derivatives applicable to optimization,*Canad. J. Math.*, to appear.

9.

Clarke, F. H.:*Optimization and Nonsmooth Analysis*, Wiley, New York, 1983.

10.

Mordukhovich, B. S.:*Approximation Methods in Problems of Optimization and Control*, Nauka, Moscow (1988) (in Russian); English translation: Wiley-Interscience, to appear.

11.

Rockafellar, R. T.: Lagrange multipliers and optimality,*SIAM Rev.*
**35** (1993), 183–238.

12.

Auslender, A. and Cominetti, R.: A comparative study of multifunction differentiability with applications in mathematical programming,*Math. Oper. Res.*
**16** (1991), 240–258.

13.

Penot, J. P.: On the differentiability of the subdifferential of a maximum function, preprint, 1992.

14.

Rockafellar, R. T.: Maximal monotone relations and the second derivatives of nonsmooth functions,*Ann. Inst. H. Poincaré: Analyse Nonlinéaire*
**2** (1985), 167–184.

15.

Rockafellar, R. T.: Generalized second derivatives of convex functions and saddle functions,*Trans. Amer. Math. Soc.*
**322** (1990), 51–77.

16.

Do, C.: Generalized second derivatives of convex functions in reflexive Banach spaces,*Trans. Amer. Math. Soc.*
**334** (1992), 281–301.