@article{ref1,
title="Estimation of working ability in diseases and injuries of the locomotor system",
journal="Duodecim: Laaketieteellinen Aikakauskirja",
year="1975",
author="Rokkanen, P.",
volume="91",
number="16",
pages="971-978",
abstract="<p>[Abstract unavailable]</p><p>Language: fi</p>",
language="fi",
issn="0012-7183",
doi="",
url="http://dx.doi.org/"
}