@article{ref1,
title="The criminal XYY chromosomes: fact or fiction",
journal="Science for the people",
year="1974",
author="Elseviers, Dirk",
volume="6",
number="5",
pages="22-24",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0048-9662",
doi="",
url="http://dx.doi.org/"
}