共 20 条
[1]
BEDINGER MS, 1971, US GEOLOGICAL SURV C, V750, P248
[4]
Eyre F.H., 1980, FOREST COVER TYPES U
[5]
FOWELL HA, 1965, USDA FOREST SERVICE, V271
[6]
GOSSELINK JG, 1981, DEV AGR MANAGED FORE, V11, P197
[8]
KNIGHT HA, 1981, USDA SE230 RES PAP
[9]
MCKELLAR H, 1981, DEV ENV MODELLING, V1, P315
[10]
MCKELLAR HN, 1984, UNPUB CONCEPTUAL MOD