共 14 条
[1]
[Anonymous], METAL B
[2]
[Anonymous], ENG MIN J
[3]
FOX KA, 1958, ECONOMETRIC ANAL PUB
[4]
HUGHES JE, 1972, METALS MAT MAY, P197
[5]
HUMPHREYS D, 1983, DEFINITION MEASURE 3, V3
[6]
JACOBSON DM, 1985, MATER SOC, V9
[7]
Malenbaum W., 1978, WORLD DEMAND RAW MAT
[8]
Nutting J., 1977, METALS MAT JUL, P30
[9]
WEI J, 1979, STRUCTUR CHEM PROCES
[10]
EC RAW MATERIALS BAL