@misc{_Zdzisław,
 copyright={Public Domain},
 howpublished={online},
 type={Image},
 title={Zdzisław Rudzki},
 URL={http://www.rcin.org.pl/Content/128348/PDF/WA058_109801_Rudzki_Zdzislaw.pdf},
 keywords={Rudzki, Zdzisław (1879-1952), naturalists, teachers, Nassonow, Mikołaj (1855-1939) - assistant, Stefan Batory Gymnasium and Lyceum (Warsaw, Poland) - directors},
}