On the complexity of surrogate and group relaxation for integer linear programs. - Trivikram Dokka; Adam N. Letchford; M. Hasan Mansoor (Oper. Res. Lett., 2021)

Revisiting surrogate relaxation for the multidimensional knapsack problem. - Trivikram Dokka; Adam N. Letchford; M. Hasan Mansoor (Oper. Res. Lett., 2022)