//-->
Energy, residuals and inefficiency : an engineering-econometric analysis of environmental regulations
Kopp, Raymond J., (1980)
The measurement of productive efficiency : a reconsideration
Kopp, Raymond J., (1981)
Special Topic: Chesapeake Bay Management -- Welfare Implications of Restricted Triazine Herbicide Use in the Chesapeake Bay Region
Gianessi, Leonard P., (1988)