@article{ref1,
title="The effects of law enforcement activity on a population of opiate abusers",
journal="NIDA research monograph",
year="1981",
author="Atkinson, C. A.",
volume="34",
number="",
pages="199-205",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1046-9516",
doi="",
url="http://dx.doi.org/"
}