@article{ref1,
title="A review of bicycle helmet effectiveness",
journal="International journal for consumer safety",
year="1994",
author="Hayes, H. R. Michael (Mike)",
volume="1",
number="1",
pages="51-57",
abstract="Abstract unavailable.",
language="",
issn="0929-8347",
doi="",
url="http://dx.doi.org/"
}