2Caves D W,Christensen L R,Diewert W E.The economic theory of index numbers and the measurement of input, output and productivity[].Econometrica.1982
3Fare R,Grosskopf S,Lovell CAK,Pasurka C.Multilateral Productivity Comparisons When Some Outputs are Undesirable: A Nonparametric Approach[].The Review of the Economics and Statistics.1989
4Fare R,Grosskopf S,Norris M,etc.Productivity growth, technical progress and efficiency change in industrialized countries[].The American Economist.1994
