共 23 条
[2]
CROSSLEY HE, 1944, J SOC CHEM IND LOND, V63, P284
[3]
DALE LS, 1993, AUST COAL J, P17
[5]
FINKELMAN RB, 1981, OFR8199 US GEOL SURV
[7]
GODBEER WC, 1992, J COAL QUAL, V11, P43
[8]
GOLDBEER WC, 1987, GEOSTDS NEWSL, V11, P143
[9]
GOLIGHTLY DW, 1989, US GEOLOGICAL SURVEY, V1823, P72