@article{ref1,
title="Trends in juvenile delinquency",
journal="Public health papers",
year="1961",
author="Gibbens, T. C. N.",
volume="5",
number="",
pages="1-56",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0555-6015",
doi="",
url="http://dx.doi.org/"
}