@article{ref1,
title=""situational" Crime Prevention: Theory and Practice",
journal="British journal of criminology",
year="1980",
author="Clarke, Ronald Victor Gemuseus",
volume="20",
number="2",
pages="136-147",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0007-0955",
doi="",
url="http://dx.doi.org/"
}