%0 Journal Article %A Shalini Jha %A Prasun Das %A Tadeusz Antczak %T Exponential Type Duality for $\eta$-Approximated Variational Problems %J Yugoslav journal of operations research %D 2020 %P 19 - 43 %V 30 %N 1 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/YJOR_2020_30_1_a1/ %F YJOR_2020_30_1_a1