[2] J. L. Lions:
Quelques méthodes de résolution des problèmes aux limites non linéaires. Dunod, Gauthier-Villars, Paris 1969.
MR 0259693 |
Zbl 0189.40603
[3] U. Mosco: Convergence of Solutions of Variational Inequalities; Theory and Applications of Monotone Operators. Proceedings of a NATO Advanced Study Institute held in Venice, Italy, June 17-30, 1968.