共 16 条
[1]
[Anonymous], J APPL ECONOMETRICS, DOI DOI 10.1002/JAE.3950010104
[5]
Contingent valuation: A user's guide
[J].
ENVIRONMENTAL SCIENCE & TECHNOLOGY,
2000, 34 (08)
:1413-1418
[6]
CLEMENS JD, 1986, LANCET, V2, P124