@article{ref1,
title="Skull injuries: brain concussion and contusion",
journal="Rassegna internazionale di clinica e terapia",
year="1970",
author="Valente, P.",
volume="50",
number="24",
pages="1541-1543",
abstract="<p>[Abstract unavailable]</p><p>Language: it</p>",
language="it",
issn="0033-9695",
doi="",
url="http://dx.doi.org/"
}