@article{ref1,
title="Development of an individually formed mouth protector for boxers",
journal="Deutsche Zahnarztliche Zeitschrift",
year="1973",
author="Bollmann, F. and Clasing, D. and Wannenmacher, M.",
volume="28",
number="1",
pages="80-86",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0012-1029",
doi="",
url="http://dx.doi.org/"
}