Portela MCAS and E Thanassoulis (2006). “Zero Weights and Non-Zero Slacks: Different Solutions to the Same Problem.” Ann Oper Res 145: 129-147.
Portela MCAS and E Thanassoulis (2006). “Zero Weights and Non-Zero Slacks: Different Solutions to the Same Problem.” Ann Oper Res 145: 129-147.