共 12 条
[2]
BERGMANN W, 1969, AUFTRETEN ERKENNEN V
[4]
FARMER V. C., 1950, Spectrochimica Acta, V4, P224, DOI 10.1016/0371-1951(50)80005-X
[6]
HENRIKSEN A., 1958, Acta Agriculturae Scandinavica, V8, P441
[7]
LERICHE HH, 1968, J AGR SCI, V71, P205, DOI 10.1017/S0021859600014659
[8]
PURVES D, 1972, Environmental Pollution, V3, P17, DOI 10.1016/0013-9327(72)90014-6
[10]
PURVES D, 1968, 9 T INT C SOIL SCI, V2, P351