共 19 条
[1]
FRACTIONATION OF HUMIC-ACID BY GEL-PERMEATION CHROMATOGRAPHY
[J].
JOURNAL OF SOIL SCIENCE,
1977, 28 (04)
:634-644
[2]
BARSDATE RJ, 1970, ORGANIC MATTER NATUR, P485
[3]
Bolter E., 1975, Trace substances in environmental health -- IX., P107
[7]
HEM JD, 1973, J AM WATER WORKS ASS, V65, P562
[8]
Lag J, 1969, NOR GEOL UNDERS, V266, P141
[9]
Lewis W.J., 1967, LEAD MINING WALES
[10]
MCCLAREN RG, 1978, STUDIES FACTORS AFFE