@article{ref1,
title="Comparative Accuracy of two Sampling Methods for Measuring Motor-Vehicle Traffic",
journal="Metrika",
year="1963",
author="Stange, K",
volume="6",
number="2",
pages="114-132",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0026-1335",
doi="",
url="http://dx.doi.org/"
}