共 18 条
[4]
Butcher R. W., 1937, TECH PAP WAT POLLUT, V6, P1
[6]
CRISP DT, 1970, ARCH HYDROBIOL, V67, P502
[7]
CRISP DT, 1964, GEOGR J, V130, P519
[8]
EGGLISHAW HJ, 1971, FRESHWATER BIOL, V1, P273
[9]
Elliott J. M., 1967, Archiv fuer Hydrobiologie, V63, P202