@misc{Jasser_Iwona_Long_1998, author={Jasser, Iwona}, volume={46}, number={4}, editor={Polish Academy of Sciences. Institute of Ecology}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Dziekanów Leśny}, journal={Polish Journal of Ecology}, howpublished={online}, year={1998}, publisher={Polish Academy of Sciences. Institute of Ecology. Publishing Office}, language={eng}, type={Text}, title={Long term changes of phytoplankton composition and biomass}, URL={http://rcin.org.pl/Content/98296/PDF/WA058_90725_P2840-T46_Eko-Pol-A-Nr-4.pdf}, keywords={humic lake, liming, long term changes, biodiversity, food-web}, }