共 29 条
[5]
ERBEN HK, 1971, ABH MATH NATURW KL J, V2, P31
[8]
HEATH RG, 1972, 15 P INT ORN C, P475
[9]
JEFFERIES D J, 1971, Environmental Pollution, V1, P235, DOI 10.1016/0013-9327(71)90006-1
[10]
LINCER JL, 1972, THESIS CORNELL U