@article{ref1,
title="Current problems of aviation-accident medicine",
journal="Lebensversicherungs Medizin",
year="1969",
author="Krefft, S.",
volume="21",
number="5",
pages="101-103",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0024-0044",
doi="",
url="http://dx.doi.org/"
}