@article{ref1,
title="The Bulgarians and the so-called Sonderaktion Krakau 1939",
journal="Przeglad Lekarski",
year="1977",
author="Rusinow, R.",
volume="34",
number="1",
pages="183-185",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0033-2240",
doi="",
url="http://dx.doi.org/"
}