共 17 条
[1]
[Anonymous], 1991, ENERG J
[3]
BERGMAN L, 1991, ENV RESOURCE EC, V1, P67
[7]
Conrad K., 1991, ENVIRON RESOUR ECON, V1, P289
[8]
CONRAD K, 1991, SCHWEIZERISCHE Z VOL, V127, P199
[9]
CONRAD K, 1991, ENV SCARCITY INT DIM, P35
[10]
CONRAD K, 1992, APPLIED GENERAL EQUI