@misc{Sitowski_Ludwik_(1880–1947)_Ptaki_1916,
 author={Sitowski, Ludwik (1880–1947)},
 copyright={Public Domain},
 address={Kraków},
 journal={Publications of famous biologists - a collection of prints},
 howpublished={online},
 year={1916},
 publisher={Nakładem Akademii Umiejętności},
 language={pol},
 title={Ptaki Pienin},
 type={Text},
 URL={http://www.rcin.org.pl/Content/118801/PDF/s1001.pdf},
 keywords={Ornithology - fauna of higher animals - list of species - systematics - Pieniny, Birds - Pieniny},
}