共 19 条
[11]
KELLER W, 1984, WATER AIR SOIL POLL, V23, P271
[12]
LUND JWG, 1958, HYDROBIOLOGIA, V11, P142
[14]
MUNIZ IP, 1980, P INT C ECOL IMPACTS
[15]
Nilssen JP., 1984, REP I FRESHWATER RES, V61, P148
[18]
1985, SAS USERS GUIDE STAT
[19]
1981, ACIDIFICATION CANADI