@misc{Tworek_Stanisław_Studia_2010,
 author={Tworek, Stanisław},
 volume={Nr 58},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Studia Naturae},
 howpublished={online},
 year={2010},
 publisher={Institute of Nature Conservation of the Polish Academy of Sciences},
 language={pol},
 type={Text},
 title={Studia Naturae No. 58 (2010)},
 keywords={breeding birds - Poland, agricultural landscape, agriculture - environmental aspects},
}