@article{ref1,
title="Mouth protectors during the 1st World Amateur Boxing Championship",
journal="Revista Cubana de Estomatología",
year="1975",
author="de Cárdenas Sotelo, O.",
volume="12",
number="1-2",
pages="49-66",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0034-7507",
doi="",
url="http://dx.doi.org/"
}