@article{ref1,
title="Cyclists need helmets",
journal="British medical journal (clinical research edition)",
year="1988",
author="Bull, J. P.",
volume="296",
number="6630",
pages="1144-1144",
abstract="Argues for wearing bicycle helmets.  <p>Language: en</p>",
language="en",
issn="0267-0623",
doi="",
url="http://dx.doi.org/"
}