@article{ref1,
title="The design, manufacture and marketing of safety helmets",
journal="Journal of occupational accidents",
year="1986",
author="Whybrow, BC",
volume="8",
number="3",
pages="225-226",
abstract="Abstract unavailable.",
language="",
issn="0376-6349",
doi="",
url="http://dx.doi.org/"
}