@article{ref1,
title="Mass murder of mentally ill at Warka",
journal="Przeglad Lekarski",
year="1979",
author="Milczarek, J.",
volume="36",
number="1",
pages="115-119",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0033-2240",
doi="",
url="http://dx.doi.org/"
}