@article{ref1,
title="Function and effectiveness of mouth protectors. A laboratory study",
journal="Nederlands Tijdschrift voor Tandheelkunde",
year="1986",
author="de Wijn, J. R. and Vrijhoef, M. M. and Linn, E. W.",
volume="93",
number="3",
pages="112-116",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0028-2200",
doi="",
url="http://dx.doi.org/"
}