KKT optimality conditions in interval valued multiobjective programming with generalized differentiable functions. - Deepak Singh; Bilal Ahmad Dar; Do Sang Kim (Eur. J. Oper. Res., 2016)

Optimality and duality in non-differentiable interval valued multiobjective programming. - Izhar Ahmad; Deepak Singh; Bilal Ahmad Dar (Int. J. Math. Oper. Res., 2017)