@article{ref1,
title="How many, powerfully?",
journal="International journal of injury control and safety promotion",
year="2011",
author="Bangdiwala, Shrikant I.",
volume="18",
number="4",
pages="337-340",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1745-7300",
doi="10.1080/17457300.2011.632990",
url="http://dx.doi.org/10.1080/17457300.2011.632990"
}