1. Aubin, J.P., Ekeland, I.: Applied Nonlinear Analysis. Wiley, New York (1984)
2. Karamardian, S.: Complementarity problems over cones with monotone and pseudo-monotone maps. J. Optim. Theory Appl. 18, 445–454 (1976)
3. Kinderlehrer, D., Stampacchia, G.: An Introduction to Variational Inequalities and Their Applications. Academic Press, New York (1980)
4. Baiocchi, C., Capelo, A.: Variational and Quasivariational Inequalities Applications to Free Boundary Problems. Wiley, New York (1984)
5. Solodov, M.V., Tseng, P.: Modified projection-type methods for monotone variational inequalities. SIAM J. Control Optim. 34, 1814–1830 (1996)