@article{ref1,
title="Bicycle helmets reduce head injuries and should be worn by all",
journal="Injury prevention",
year="1996",
author="Vulcan, A. Peter and Lane, Jodi",
volume="2",
number="4",
pages="251-252",
abstract="Abstract unavailable.",
language="en",
issn="1353-8047",
doi="",
url="http://dx.doi.org/"
}