@article{ref1,
title="On the problem of "optimum speed" for motor vehicles in street traffic",
journal="Archiv für Hygiene und Bakteriologie",
year="1965",
author="Gärtner, H. and Gundermann, K. O.",
volume="149",
number="5",
pages="385-394",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0003-9144",
doi="",
url="http://dx.doi.org/"
}