@article{ref1,
title="Hospitalization costs of motorcycle drivers who had accidents",
journal="Alert",
year="1957",
author="Ammann, R.",
volume="21",
number="2",
pages="80-80",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="",
doi="",
url="http://dx.doi.org/"
}