@article{ref1,
title="Suggestions for more effective rail crossing lights",
journal="Occupational health and safety",
year="2002",
author="Schryver, Bruce J.",
volume="71",
number="8",
pages="10-10",
abstract="Abstract unavailable.",
language="",
issn="0362-4064",
doi="",
url="http://dx.doi.org/"
}