A portable vacuum hammer seismic source for use in tunnel environments

Open-File Report 93-187
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Publication type Report
Publication Subtype USGS Numbered Series
Title A portable vacuum hammer seismic source for use in tunnel environments
Series title Open-File Report
Series number 93-187
DOI 10.3133/ofr93187
Edition -
Year Published 1993
Language ENGLISH
Publisher U.S. Geological Survey : Books and Open-File Reports Section, Branch of Distribution,
Description 35 p. :ill. ;28 cm.
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