1. K. Deb, D. Kalyanmoy, Multi-Objective Optimization Using Evolutionary Algorithms (Wiley, New York, NY, 2001)
2. A. Sinha, Z. Lu, K. Deb, P. Malo, Bilevel Optimization based on Iterative Approximation of Multiple Mappings. Feb. 2017 [Online]. arXiv:1702.03394 [math]. Available http://arxiv.org/abs/1702.03394
3. J. Bracken, J.T. McGill, Mathematical programs with optimization problems in the constraints. Oper. Res. 21(1), 37–44 (1973)
4. W. Candler, R. Norton, Multi-Level Programming and Development Policy (The World Bank, Washington, DC, 1977)
5. A. Sinha, P. Malo, K. Deb, A review on bilevel optimization: from classical to evolutionary approaches and applications. May 2017 [Online]. arXiv:1705.06270 [cs, math]. Available http://arxiv.org/abs/1705.06270