@misc{Polak_Paweł_Dlaczego_2007,
 author={Polak, Paweł},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 howpublished={online},
 year={2007},
 publisher={Institute of Nature Conservation of the Polish Academy of Sciences},
 language={pol},
 title={Dlaczego niekiedy trudno zrozumieć przyrodę?},
 type={Text},
 URL={http://www.rcin.org.pl/Content/80444/PDF/KR038_98261_r2007_IntegOP-Polak-401-407.pdf},
 keywords={nature - philosophy, nature - philosophical aspect},
}