Ye H and M Ren (1998). “Evaluation of the Relative Efficiency of Passenger Train Operation Based on a DEA Model.” Chinese J Radio Science 13(2): 235-239.

Ye H and M Ren (1998). “Evaluation of the Relative Efficiency of Passenger Train Operation Based on a DEA Model.” Chinese J Radio Science 13(2): 235-239.

Leave a Reply