%0 Journal Article %A Nasrabadi, Nasim, Ayati, Sheyda %T Dual Frontiers in Non-convex Data Envelopment Analysis: Efficiency and In-efficiency Assessment and Stability Analysis %J Journal of New Researches in Mathematics %V 7 %N 5 %P 5-30 %D 2021 %R 10.30495/jnrm.2021.15726 %U https://sanad.iau.ir/fa/Article/797869