@misc{Grzegorczyk_Monika_Introduction_2007,
 author={Grzegorczyk, Monika},
 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},
 type={Text},
 title={Introduction},
 URL={http://rcin.org.pl/Content/116383/PDF/KR038_131651_r2007_WarSPKriO-Grzegorczyk-7.pdf},
 keywords={Kraków - nature},
}