@article{ref1,
title="Efficiency of helmets in the prevention of temporobasal injuries",
journal="Ceskoslovenska Otolaryngologie",
year="1975",
author="Durrer, J. and Polackova, J.",
volume="24",
number="3",
pages="155-159",
abstract="Abstract unavailable.",
language="",
issn="0009-0603",
doi="",
url="http://dx.doi.org/"
}