A Dissection of the Duality Gap of Set Covering Problems. - Uledi Ngulo; Torbjörn Larsson; Nils-Hassan Quttineh (OR, 2019)

Approximating the Pareto frontier for a challenging real-world bi-objective covering problem. - Nils-Hassan Quttineh; Uledi Ngulo; Torbjörn Larsson (INFOR Inf. Syst. Oper. Res., 2022)

A meta-heuristic extension of the Lagrangian heuristic framework. - Uledi Ngulo; Torbjörn Larsson; Nils-Hassan Quttineh (Optim. Methods Softw., 2024)