@misc{Greszta_Jan_Influence_1989,
 author={Greszta, Jan and Panek, Ewa},
 volume={21},
 editor={Białobok, Stefan. Redaktor},
 editor={Polska Akademia Nauk. Instytut Dendrologii},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 address={Warszawa-Poznań},
 journal={Nasze drzewa leśne},
 howpublished={online},
 year={1989},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={mul},
 type={Text},
 title={Influence of heavy metals on trees},
 keywords={trees in polluted environment, heavy metals},
}