1. Free and Moving Boundary Problems;Crank,1984
2. Numerical Analysis of Variational Inequalitites;Glowinski,1981
3. Contact Problems in Elasticity;Kikuchi,1988
4. Obstacle Problems in Mathematical Physics;Rodrigues,1987
5. General nonlinear variational inequalities;Noor;J. Math. Anal. Appl.,1987