@article{ref1,
title="Soccer injuries. A 5-year material",
journal="Tidsskrift for den Norske Laegeforening",
year="1973",
author="Nilsson, S. and Roaas, A. and Måseide, T.",
volume="93",
number="6",
pages="377-381",
abstract="<p>[Abstract unavailable]</p><p>Language: no</p>",
language="no",
issn="0029-2001",
doi="",
url="http://dx.doi.org/"
}