@misc{Lewandowski_Krzysztof_Unionidae_1990-1991,
 author={Lewandowski, Krzysztof},
 editor={Polska Akademia Nauk. Instytut Ekologii},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 howpublished={online},
 year={1990-1991},
 language={eng},
 abstract={The occurrence of Unionidae in Szeszupa River and in five associated lakes in the Suwalski Landscape Park was investigated. Species composition, numbers, biomass, size and age structure as well as growth of the river- and lake-derived individuals were analysed.},
 type={Text},
 title={Unionidae of Szeszupa River and of the lakes along its course in Suwalski Landscape Park},
 URL={http://www.rcin.org.pl/Content/82275/PDF/WA058_88171_P2840-T38_Eko-Pol-A-Nr-3-4.pdf},
 volume={38},
 number={3-4},
 journal={Ekologia Polska},
 publisher={Polish Scientific Publishers},
 keywords={river, lakes, Unionidae},
}