1. Variational and Quasi Variational Inequalities;Baiocchi,1984
2. Free and Moving Boundary Problems;Crank,1984
3. On some existence and uniqueness results in contact problems with non-local friction;Demkowicz;Nonlinear Anal.,1982
4. Les Inéquations en méchanique et en Physique;Duvaut,1972
5. Numerical Analysis of Variational Inequalities;Glowinski,1981