TY  - JOUR
A1  - Weithoff, Guntram
A1  - Walz, Norbert
T1  - Problems in estimating phytoplankton nitrogen limitation in shallow eutrophic lakes
Y1  - 1999
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/20790
ER  -