1. Ding, X. P., Random Mixed Variational-Like Inequalities in Topological Vector Spaces, Journal of the Sichuan Normal University, Vol. 20, pp. 1–13, 1997.
2. Noor, M. A., Nonconvex Functions and Variational Inequalities, Journal of Optimization Theory and Applications, Vol. 87, pp. 615–630, 1995.
3. Dien, N. H., Some Remarks on Variational-Like and Quasi-Variational-Like Inequalities, Bulletin of the Australian Mathematical Society, Vol. 46, pp. 335–342, 1992.
4. Noor, M. A., Variational-Like Inequalities, Optimization, Vol. 30, pp. 323–330, 1994.
5. Ansari, Q. H., and Yao, J. C., Prevariational Inequalities in Banach Spaces, Optimization: Techniques and Applications, Edited by L. Cacetta et al., Curtin University of Technology, Perth, Australia, Vol. 2, pp. 1165–1172, 1998.