@misc{Fiedler_Michał_Assessment,
 author={Fiedler, Michał and Zydroń, Adam and Korytowski, Mariusz},
 address={Koszalin},
 howpublished={online},
 publisher={Politechnika Koszalińska},
 language={eng},
 type={artykuł w czasopiśmie},
 title={Assessment of concentrations of selected metalsin the groundwater in the Wielkopolska National Park},
 keywords={groundwater quality, heavy metals, protected areas, Wielkopolska National Park},
}