%0 Journal Article %A Nasrollahian, Pooya, Amirteimoori, Alireza, Kordrostami, Sohrab, Vaez-Ghasemi, Mohsen %T Improving production possibility set in data envelopment analysis using confidence interval values %J Journal of New Researches in Mathematics %V 9 %N 5 %P 0-0 %D 2024 %R 10.30495/jnrm.2022.66532.2239 %U https://sanad.iau.ir/fa/Article/798439