@article{ref1,
title="Accident proneness",
journal="Biometrika",
year="1950",
author="Greenwood, ",
volume="37",
number="1-2",
pages="24-29",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0006-3444",
doi="",
url="http://dx.doi.org/"
}