An Extension of Cross Redundancy of Interval Scale Outputs and Inputs in DEA. - Farhad Hosseinzadeh Lotfi; Gholam Reza Jahanshahloo; Mansour Mohammadpour (J. Appl. Math., 2013)

An extended slacks-based measure model for data envelopment analysis with negative data. - Mansour Mohammadpour; Farhad Hosseinzadeh Lotfi; Gholam Reza Jahanshahloo (J. Oper. Res. Soc., 2015)