Seiford LM and J Zhu (1998). “Identifying Excesses and Deficits in Chinese Industrial Productivity (1953-1990): A Weighted Data Envelopment Analysis Approach.” Omega 26(2): 279-296.
Seiford LM and J Zhu (1998). “Identifying Excesses and Deficits in Chinese Industrial Productivity (1953-1990): A Weighted Data Envelopment Analysis Approach.” Omega 26(2): 279-296.