@misc{Wilga_Marcin_S._Araneus_1997,
 author={Wilga, Marcin S.},
 volume={53},
 number={1},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1997},
 publisher={Institute of Nature Conservation of the Polish Academy of Sciences},
 language={pol},
 type={Text},
 title={Araneus ceropegius, a rare spider species in lowland},
 URL={http://www.rcin.org.pl/Content/75738/PDF/KR038_96519_r1997-t53-no1_ChPO-Wilga-111-114.pdf},
 keywords={Tricity Landscape Park (Poland), Araneus ceropegius},
}