共 2 条
[1]
A robust-symmetric mean: A new way of mean calculation for environmental data[J] . Chaosheng Zhang,Shen Zhang.GeoJournal . 1996 (1-2)
[2]
Baseline element concentrations in soils and plants, Bull Island, Cape Romain National Wildlife Refuge, South Carolina, U.S.A[J] . L. P. Gough,R. C. Severson,L. L. Jackson.Water, Air, and Soil Pollution . 1994 (1)