@article{ref1,
title="The perception of traffic conditions by elderly people. A comparative study in three European countries",
journal="Studies in health technology and informatics",
year="1998",
author="Flaschenträger, P. and Spazzafumo, L. and Marcellini, F. and Mollenkopf, H. and Ruoppila, I.",
volume="48",
number="",
pages="212-216",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0926-9630",
doi="",
url="http://dx.doi.org/"
}