共 22 条
[1]
AIKEN S, 1974, Canadian Field-Naturalist, V88, P437
[2]
Beauchamp S.T, 1980, PRELIMINARY SURVEY M
[3]
CROWDER AA, 1977, NAT CANADIEN, V104, P457
[4]
HELLQUIST CB, 1980, RHODORA, V82, P331
[5]
Hutchinson G. E., 1975, TREATISE LIMNOLOGY, VIII, P264
[6]
KADONO Y, 1982, Japanese Journal of Ecology, V32, P39
[7]
Kerekes J., 1984, WATER POLLUT RES CAN, V19, P1