@article{ref1,
title="A Fuzzy Logic Method for Collision Avoidance in Vessel Traffic Service",
journal="Journal of navigation",
year="2007",
author="Kao, SL",
volume="60",
number="1",
pages="17-31",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0373-4633",
doi="",
url="http://dx.doi.org/"
}