@misc{Tryjanowski_Piotr_The_1990,
 author={Tryjanowski, Piotr},
 volume={46},
 editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 number={4-5},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1990},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 type={Text},
 title={The importance of waste land in the agroecosystems in the environs of Wolsztyn},
 URL={http://www.rcin.org.pl/Content/84551/PDF/KR038_105102_r1990-t46-no4-5_ChPO-Tryjanowski-30-36.pdf},
}