@article{ref1,
title="The significance of the crash helmet in skull injury in motorcycle riders",
journal="Monatsschrift fur Unfallheilkunde und Versicherungsmedizin",
year="1963",
author="Scheibe, J.",
volume="66",
number="",
pages="208-213",
abstract="Abstract unavailable.",
language="",
issn="0373-5222",
doi="",
url="http://dx.doi.org/"
}