TY  - BOOK
AU  - WETZEL, R.G
TI  - International Association of Theoritical and applied Limnology - Vol. 28, PART -
SN  - 3-510-54060-3
U1  - 577.6072 
PY  - 2002///
CY  - Stuttgard .
PB  - E. Schweizerbartsch Verlagbuc
ER  -