@article{ref1,
title="Safety at sea problems",
journal="Accident analysis and prevention",
year="1969",
author="Jensen, A.",
volume="1",
number="1",
pages="1-7",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0001-4575",
doi="10.1016/0001-4575(69)90002-5",
url="http://dx.doi.org/10.1016/0001-4575(69)90002-5"
}