Geothermal disruption of summit glaciers at Mount Spurr Volcano, 2004-6 : an unusual manifestation of volcanic unrest / by Michelle L. Coombs ... [and others].
Mode of access: Internet at the USGS web site. Address as of 7/25/08: http://pubs.usgs.gov/pp/pp1732/pp1732b/pp1732b.pdf; current access is available via PURL.
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