@article{ref1,
title="Accident prevention. Research design",
journal="Archives of environmental health",
year="1966",
author="Blumenthal, M.",
volume="13",
number="4",
pages="531-536",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0003-9896",
doi="",
url="http://dx.doi.org/"
}