@article{ref1,
title="Primary injury and running-over of pedestrians and bicyclists in traffic",
journal="Hefte zur Unfallheilkunde",
year="1965",
author="Heifer, U.",
volume="81",
number="",
pages="255-258",
abstract="Abstract unavailable.",
language="",
issn="0085-1469",
doi="",
url="http://dx.doi.org/"
}