@article{ref1,
title="Suggestions for the Reform of the German Traffic System",
journal="Zeitschrift des Vereines Deutscher Ingenieure",
year="1920",
author="Scharfenberg, ",
volume="64",
number="",
pages="261-262",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0341-7255",
doi="",
url="http://dx.doi.org/"
}