@article{ref1,
title="Pathomechanics of the protective helmet",
journal="Wiener Medizinische Wochenschrift",
year="1977",
author="Richling, B.",
volume="127",
number="10",
pages="313-315",
abstract="Abstract unavailable.",
language="",
issn="0043-5341",
doi="",
url="http://dx.doi.org/"
}