%0 Journal Article %A Sharifi, M., Tohidi, GH., Daneshian, B., Modarres khiyabani, F. %T A new non oriented models for calculating the efficiency of decision-making units in the presence of flexible variables %J Journal of New Researches in Mathematics %V 4 %N 3 %P 19-30 %D 2018 %R %U https://sanad.iau.ir/fa/Article/798730