TY  - BOOK
AU  - Hessen, D. O
AU  - Tranvik, L. J
TI  - Aquatic humic substances : ecology and biogeochemistry
SN  - 9783540639107
U1  - 577.6 HES 
PY  - 1998///
CY  - New York
PB  - Springer
KW  - Freshwater ecology
ER  -