@misc{Broniewska_Katarzyna_Quercus_2009-2019,
 author={Broniewska, Katarzyna and Jędrowiak, Anna and Nowak, Kinga},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 howpublished={online},
 year={2009-2019},
 language={mul},
 title={Quercus robur L.},
 type={Image},
 keywords={woody plant, deciduous tree, European species, common species, the oldest trees},
}