@article{ref1,
title="Is there something wrong with bicycling?",
journal="Nederlands Tijdschrift voor Geneeskunde",
year="1988",
author="",
volume="132",
number="9",
pages="412-413",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0028-2162",
doi="",
url="http://dx.doi.org/"
}