@article{ref1,
title="The Hillsborough tragedy",
journal="British medical journal: BMJ",
year="1991",
author="Wardrope, J. and Ryan, F. and Clark, G. and Venables, G. and Crosby, A. C. and Redgrave, P.",
volume="303",
number="6814",
pages="1381-1385",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}