//-->
Global variation of outputs with respect to the variation of inputs in performance analysis; generalized RTS
Zarepisheh, M., (2008)
A dual simplex-based method for determination of the right and left returns to scale in DEA
Zarepisheh, M., (2009)
Linear transformations to decrease computational requirements of solving some known linear programming models
Soleimani-damaneh, M., (2009)