@misc{_Zygmunt,
 editor={Dehnel, August Gustaw (1903–1962). Collector},
 copyright={Public Domain},
 howpublished={online},
 title={Zygmunt Kraczkiewicz},
 type={Image},
 URL={http://www.rcin.org.pl/Content/106410/PDF/WA058_90972_Kraczkiewicz_1.pdf},
 keywords={Kraczkiewicz, Zygmunt (1900-1971), zoologists, cytologists, Chair of Zoology UW, biologists - Poland - biography, Tur, Jan Korczak (1875-1942) - students},
}