@article{ref1,
title="Volcano monitoring program--Mount St. Helens",
journal="MMWR: Morbidity and mortality weekly report",
year="1981",
author="",
volume="30",
number="14",
pages="170-171",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0149-2195",
doi="",
url="http://dx.doi.org/"
}