@article{ref1,
title="Costs of emergency ambulances",
journal="Ugeskrift for Laeger",
year="1992",
author="Koldbaek, I.",
volume="154",
number="16",
pages="1120-1120",
abstract="<p>[Abstract unavailable]</p><p>Language: da</p>",
language="da",
issn="0041-5782",
doi="",
url="http://dx.doi.org/"
}