@article{ref1,
title="Principles of emergency vehicle placement",
journal="Emergency medical services",
year="1998",
author="Meade, D. M. and Dernocoeur, K.",
volume="27",
number="11",
pages="34-35",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0094-6575",
doi="",
url="http://dx.doi.org/"
}