@article{ref1,
title="The football knee. A general plan for rehabilitation of a sprained knee",
journal="Delaware medical journal",
year="1966",
author="Donoho, C. R. and Rylander, C. R.",
volume="38",
number="1",
pages="20-22 passim",
abstract="<p>[Abstract unavailable]  Keywords: American football; </p> <p>Language: en</p>",
language="en",
issn="0011-7781",
doi="",
url="http://dx.doi.org/"
}