1. F. A. Al-Khayyal . Jointly Constrained Bilinear Programs and Related Problems: An Overview. Computers in Mathematical Applications, 19: 53–62, 1990.
2. A. Ben-Tal, G. Eiger, and V. Gershovitz. Global Minimization by Reducing the Duality Gap. Mathematical Programming, 63: 193–212, 1994.
3. C. A. Floudas and P. M Pardalos. Recent Advances in Global Optimization. Princeton Series in Computer Science. Princeton University Press, Princeton, New Jersey, 1992.
4. R. Horst and P.M. Pardalos. Handbook of Global Optimization: Nonconvex Optimization and Its Applications. Kluwer Academic Publishers, 1994.
5. C. A. Floudas and V. Visweswaran. A Primal-Relaxed Dual Global Optimization Approach. J. Opt. Th. Appl., 78 (2): 187–225, 1993.