@article{ref1,
title="Sources of error in identification with excreted substances",
journal="Archiv für Kriminologie",
year="1981",
author="Schwerd, W. and Kuhnke, O.",
volume="168",
number="3-4",
pages="93-100",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0003-9225",
doi="",
url="http://dx.doi.org/"
}