@article{ref1,
title="Studies on the psychopathology of murderers",
journal="Polish medical journal",
year="1972",
author="Szymusik, A.",
volume="11",
number="3",
pages="752-757",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0032-2938",
doi="",
url="http://dx.doi.org/"
}