Gang Y, W Quanling and P Brockett (1996). “A Generalized Data Envelopment Analysis Model: A Unification and Extension of Existing Methods for Efficiency Analysis of Decision Making Units.” Ann Oper Res 66: 47-89.
Gang Y, W Quanling and P Brockett (1996). “A Generalized Data Envelopment Analysis Model: A Unification and Extension of Existing Methods for Efficiency Analysis of Decision Making Units.” Ann Oper Res 66: 47-89.