@article{ref1,
title="Tolerances for cerebral concussion from head impact and whiplash in primates",
journal="Journal of biomechanics",
year="1971",
author="Ommaya, A. K. and Hirsch, A. E.",
volume="4",
number="1",
pages="13-21",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-9290",
doi="",
url="http://dx.doi.org/"
}