@article{ref1,
title="Bicycle ergometry",
journal="Tidsskrift for den Norske Laegeforening",
year="1971",
author="Spilker, L. S.",
volume="91",
number="19",
pages="1445-1450",
abstract="<p>[Abstract unavailable]</p><p>Language: no</p>",
language="no",
issn="0029-2001",
doi="",
url="http://dx.doi.org/"
}