@article{ref1,
title="The Evaluation of School‐Based Violence Prevention Programs: A Meta‐Analysis",
journal="Journal of school health",
year="2008",
author="",
volume="78",
number="9",
pages="518-520",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0022-4391",
doi="10.1111/j.1746-1561.2008.00338.x",
url="http://dx.doi.org/10.1111/j.1746-1561.2008.00338.x"
}