@misc{Mitrophanow_Paul_(Mitrofanow_Pawieł_Iljicz)_(1857–1920)_Beiträge_1902,
 author={Mitrophanow, Paul (Mitrofanow, Pawieł Iljicz) (1857–1920)},
 copyright={Public Domain},
 address={Leipzig},
 journal={Publications of famous biologists - a collection of prints},
 howpublished={online},
 year={1902},
 publisher={Wilhelm Engelmann},
 language={ger},
 title={Beiträge zur Entwicklung der Wasservögel},
 type={Text},
 URL={http://www.rcin.org.pl/Content/87862/PDF/724.pdf},
 keywords={Waterfowl, Domestic duck (Anas domestica), Tern (Sterna hirundo), Bird development},
}