1. Attouch, H.: Variational convergence for functions and operators. Pitman, London (1984)
2. Attouch, H., Azé, D., Wets, R.J.-B.: On continuity of the partial Legendre–Fenchel transform: convergence of sequences of augmented Lagrangian functions, Moreau–Yosida approximates and subdifferential operators. In: Hiriart-Urruty, J.-B. (ed.) Fermat days 85: mathematics for optimization, pp 1–42, North Holland (1986)
3. Attouch, H., Azé, D., Wets, R.J.-B.: Convergence of convex-concave saddle functions: continuity properties of the Legendre–Fenchel transform with applications to convex programming and mechanics. Ann. Inst. H. Poincaré: Analyse Nonlinéaire 5, 537–572 (1988)
4. Attouch, H., Wets, R.J.-B.: Approximation and convergence in nonlinear optimization. In: Mangasarian, O., Meyer, R., Robinson, S. (eds.) Nonlinear Programming, vol. 4, pp 367–394. Academic Press, New York (1981)
5. Attouch, H., Wets, R.J.-B.: Convergence des points min/sup et de points fixes. Comptes Ren. Acad. Sci. Paris 296, 657–660 (1983)