@article{ref1,
title="The health hazards of leaf burning",
journal="American journal of public health",
year="1994",
author="Curtis, L.",
volume="84",
number="10",
pages="1696-1696",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}