@article{ref1,
title="Recent advances in the study of the mechanism of impact injury of the head--a summary",
journal="Clinical neurosurgery",
year="1972",
author="Gurdjian, Elisha S.",
volume="19",
number="",
pages="1-42",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0069-4827",
doi="",
url="http://dx.doi.org/"
}