@article{ref1,
title="Assessment of a Driver Guidance System: A Multilevel Evaluation",
journal="Transportation human factors",
year="1999",
author="Forzy, Jean-Francois",
volume="1",
number="3",
pages="273-287",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1093-9741",
doi="10.1207/sthf0103_9",
url="http://dx.doi.org/10.1207/sthf0103_9"
}