@misc{_Krystyna,
 copyright={Public Domain},
 howpublished={online},
 type={Image},
 title={Krystyna Kowalska},
 URL={http://www.rcin.org.pl/Content/105922/WA058_90968_Kowalska_K.pdf},
 keywords={Kowalska, Krystyna (1915-1994), zoologists, zoology historians, science historian, biologists - Poland - biography},
}