Wei Q and W-C Chiang (1996). “An Integral Method for the Measurement of Technological Progress and Data Envelopment Analysis.” J Systems Science and Systems Engineering 5(1): 75-86.
Wei Q and W-C Chiang (1996). “An Integral Method for the Measurement of Technological Progress and Data Envelopment Analysis.” J Systems Science and Systems Engineering 5(1): 75-86.