@article{ref1,
title="Risk factors in school shootings",
journal="Clinical psychology review",
year="2001",
author="",
volume="21",
number="1",
pages="159-159",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0272-7358",
doi="",
url="http://dx.doi.org/"
}