@misc{_Zygmunt,
 copyright={Public Domain},
 howpublished={online},
 title={Zygmunt Kramsztyk},
 type={Image},
 URL={http://rcin.org.pl/miiz/Content/106455/PDF/WA058_90973_Kramsztyk_1.pdf},
 keywords={Kramsztyk, Zygmunt (1849-1920), medicals, academics, metodologists, biologists - Poland - biography},
}