@misc{_Maria,
 copyright={Public Domain},
 howpublished={online},
 type={Image},
 title={Maria Prószyńska},
 URL={http://www.rcin.org.pl/Content/127507/PDF/WA058_109786_Proszynska_Maria.pdf},
 keywords={Prószyńska, Maria (1930-2017), zoologists, hydrobiologists, academics, biologists - Poland - biography},
}