@article{ref1,
title="The cyclist and his helmet",
journal="Harefuah",
year="1993",
author="Ohry, A. and Azaria, M.",
volume="124",
number="7",
pages="444-444",
abstract="Abstract unavailable.",
language="",
issn="0017-7768",
doi="",
url="http://dx.doi.org/"
}