TY  - RPRT
TI  - Cross‐hole radar attenuation tomography using a frequency centroid down‐shift method: Consideration of non‐linear frequency dependence of EM wave attenuation
AU  - Lanbo Liu
AU  - Chaoguang Zhou
AU  - John W. Lane
AU  - F.P. Haeni
PY  - 1997
UR  - https://pubs.usgs.gov/publication/70206379
ID  - 70206379
ER  -