Liu Y-P, Z-G Lin and Z-Y Shen (2006). “Effective Data Envelopment Analysis Method for Ranking Decision Making Units.” System Engineering Theory and Practice 26(3): 112-116.
Liu Y-P, Z-G Lin and Z-Y Shen (2006). “Effective Data Envelopment Analysis Method for Ranking Decision Making Units.” System Engineering Theory and Practice 26(3): 112-116.