@article{ref1,
title="Convenience Stores, Armed Robbery, and Physical Environmental Features",
journal="American behavioral scientist",
year="1976",
author="Duffala, Dennis C.",
volume="20",
number="2",
pages="227-245",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-7642",
doi="10.1177/000276427602000205",
url="http://dx.doi.org/10.1177/000276427602000205"
}