X. L. Sun

Exact Algorithm for Concave Knapsack Problems: Linear Underestimation and Partition Method

Fu Lee Wang, X. L. Sun, F. L. Wang, 2005, J. Glob. Optim..

Computing exact solution to nonlinear integer programming: Convergent Lagrangian and objective level cut method

X. L. Sun, D. Li, J. Wang, 2007, J. Glob. Optim..