@article{ref1,
title="New York to police air monitoring",
journal="Nature",
year="2008",
author="Courtland, Rachel",
volume="451",
number="7178",
pages="508-508",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-0836",
doi="10.1038/451508a",
url="http://dx.doi.org/10.1038/451508a"
}