@article{ref1,
title="Mentally ill as perpetrators of political homicides",
journal="Psychiatria Polska",
year="1968",
author="Spett, K.",
volume="2",
number="1",
pages="77-80",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0033-2674",
doi="",
url="http://dx.doi.org/"
}