@article{ref1,
title=""Danger Trees" in Central Appalachian Forests of the United States: An Assessment of Their Frequency of Occurrence",
journal="Journal of safety research",
year="1998",
author="Alerich, C and Egan, A",
volume="29",
number="2",
pages="77-85",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0022-4375",
doi="",
url="http://dx.doi.org/"
}