@article{ref1,
title="XYY survey in an institution for sex offenders and the mentally ill",
journal="Nature",
year="1969",
author="Melnyk, J. and Derencsenyi, A. and Vanasek, F. and Rucci, A. J. and Thompson, H.",
volume="224",
number="5217",
pages="369-370",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-0836",
doi="",
url="http://dx.doi.org/"
}