%0 Journal Article %A Malmir, Mohammad, کاظمی متین, رضا, Ahadzadeh namin, Mahnaz %T Efficiency analysis in two-stage production systems with the presence of undesirable and reversible factors %J Journal of New Researches in Mathematics %V 9 %N 4 %P 0-0 %D 2024 %R 10.30495/jnrm.2022.66444.2236 %U https://sanad.iau.ir/fa/Article/798367