@article{ref1,
title="The Nottingham, Leicester, Derby aircraft accident study: preliminary report three weeks after the accident",
journal="British medical journal: BMJ",
year="1989",
author="Kirsh, G. and Learmonth, D. J. and Martindale, J. P.",
volume="298",
number="6672",
pages="503-505",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}