@article{ref1,
title="High carbon monoxide levels measured in enclosed skating rinks",
journal="Journal of the Air Pollution Control Association",
year="1978",
author="Spengler, J. D. and Stone, K. R. and Lilley, F. W.",
volume="28",
number="8",
pages="776-779",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-2470",
doi="",
url="http://dx.doi.org/"
}