@misc{_Paul_[1904],
 copyright={Public Domain},
 howpublished={online},
 year={[1904]},
 type={Image},
 title={Paul Robien},
 URL={http://rcin.org.pl/Content/75420/PDF/WA058_88659_Robien_P1939.pdf},
 keywords={Robien, Paul (1882-1945), Ruthke, Paul, naturalists, ecologists, ornithologists, ornithological station, Szczecin, voiv. zachodniopomorskie (Poland)},
}