@article{ref1,
title="Risk contours and risk management criteria for safety at major airports, with particular reference to the case of Schiphol",
journal="Safety science",
year="2002",
author="Hale, Andrew Richard",
volume="40",
number="1-4",
pages="299-323",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0925-7535",
doi="",
url="http://dx.doi.org/"
}