1. Optimal Control of Variational Inequalities;Barbu,1984
2. Hamilton-Jacobi equations and non linear control problems;Barbu;J. Math. Anal. Appl.,1986
3. Hamilton-Jacobi Equations in Hilbert Spaces;Barbu,1982
4. Equations d'evolution dans un espace de Banach quelconque et applications;Benilan;thesis,1972
5. Problemes unilateraux;Brézis;J. Math. Pures Appl.,1972