@article{ref1,
title="The Capacity of Roads",
journal="Zeitschrift des Vereines Deutscher Ingenieure",
year="1939",
author="Wehner, B",
volume="83",
number="",
pages="1322-1323",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0341-7255",
doi="",
url="http://dx.doi.org/"
}