1. Bednarczuk E. and Penot J.P. (1992). Metrically well-set minimization problems. Appl. Math. Optim. 26(3): 273–285
2. Brezis H. (1973). Operateurs maximaux monotone et semigroups de contractions dans les espaces de hilbert. North-Holland, Amsterdam
3. Brøndsted A. and Rockafellar R.T. (1965). On the subdifferentiability of convex functions. Proc. Am. Math. Soc 16: 605–611
4. Cavazzuti E. and Morgan J. (1983). Well-posed saddle point problems. In: Hirriart-Urruty, J.B., Oettli, W. and Stoer, J. (eds) Optimization, Theory and Algorithms, pp 61–76. Marcel Dekker, New York, NY
5. Del Prete, I., Lignola, M.B., Morgan, J.: New concepts of well-posedness for optimization problems with variational inequality constraints. JIPAM. J. Inequal. Pure Appl. Math. 4(1), Article 5 (2003)