@article{ref1,
title="Jumper's Knee",
journal="Journal of sports traumatology and related research",
year="1990",
author="Santilli, G. and Dragoni, S and Bonsignore, D.",
volume="12",
number="2 Suppl 1",
pages="23-27",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="1120-3137",
doi="",
url="http://dx.doi.org/"
}