The following publications are possibly variants of this publication:
- Convergent Lagrangian and Contour Cut Method for Nonlinear Integer Programming with a Quadratic Objective FunctionD. Li, X. L. Sun, F. L. Wang. siamjo, 17(2):372-400, 2006. [doi]
- A nonlinear Lagrangian dual for integer programmingYifan Xu, Duan Li. orl, 30(6):401-407, 2002. [doi]
- Convergent Lagrangian and domain cut method for nonlinear knapsack problemsD. Li, X. L. Sun, J. Wang, K. I. M. McKinnon. coap, 42(1):67-104, 2009. [doi]