Kim T and J-G Kim (2005). “Heterogeneity in and Determinants of Technical Efficiency in the Use of Polluting Inputs.? in Lecture Notes in Computer Science, Springer Verlag, Heidelberg. 3483: 280-289.
Kim T and J-G Kim (2005). “Heterogeneity in and Determinants of Technical Efficiency in the Use of Polluting Inputs.? in Lecture Notes in Computer Science, Springer Verlag, Heidelberg. 3483: 280-289.