共 27 条
[5]
CARSON RT, 1991, MEASURING DEMAND ENV, P121
[8]
Cummings R.G., 1986, VALUING ENV GOODS AS
[9]
DIAMOND PA, 1993, CONTRIB TO ECON ANAL, V220, P41
[10]
DIAMOND PA, 1993, CONTRIB TO ECON ANAL, V220, P3