@article{ref1,
title="On the connection between traffic accidents and traffic volume on a section of a German autobahn",
journal="Accident analysis and prevention",
year="1970",
author="Leutzbach, W. and Siegener, W and Wiedemann, R",
volume="2",
number="2",
pages="93-102",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0001-4575",
doi="",
url="http://dx.doi.org/"
}