@article{ref1,
title="Management of safety in systems",
journal="Safety science",
year="1997",
author="Hale, Andrew Richard",
volume="26",
number="1-2",
pages="105-106",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0925-7535",
doi="",
url="http://dx.doi.org/"
}