TY  - RPRT
TI  - A comparison of phase inversion and traveltime tomography for processing near-surface refraction traveltimes
AU  - Karl J. Ellefsen
PY  - 2009
DO  - 10.1190/1.3196857
UR  - https://pubs.usgs.gov/publication/70199992
ID  - 70199992
ER  -