@article{ref1,
title="Mechanical impedance of the femur: a preliminary report",
journal="Journal of biomechanics",
year="1971",
author="Campbell, J. N. and Jurist, J. M.",
volume="4",
number="5",
pages="319-322",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-9290",
doi="",
url="http://dx.doi.org/"
}