Karl Ellefsen
An analysis of crosswell radar data collected during an experimental gasoline spill (Open-file report)
An evaluation of several geophysical methods for characterizing sand and gravel deposits
Geophysical site characterization of the Midvale slag site, Midvale, Utah
Processing of seismic tomography data collected at Tunnel 160, Degelen Mountain, Kazakhstan
S-wave refraction survey of alluvial aggregate
Summary of geophysical investigations for DNAPL remediation at Savannah River Site, South Carolina
Summary of geophysical investigations for DNAPL remediation at Savannah River Site, South Carolina
Two-dimensional numerical simulation of elastic wave propagation for environmental and geotechnical studies