Hailu A and TS Veeman (2000). “Environmentally Sensitive Productivity Analysis of the Canadian Pulp and Paper Industry, 1959-1994: An Input Distance Function Approach.” J Environmental Economics and Management 40(3): 251-274.
Hailu A and TS Veeman (2000). “Environmentally Sensitive Productivity Analysis of the Canadian Pulp and Paper Industry, 1959-1994: An Input Distance Function Approach.” J Environmental Economics and Management 40(3): 251-274.