@misc{indiciae2dba45bd04f3,
  title = {Non-destructive measurement of soil liquefaction density change by crosshole radar tomography, Treasure Island, California},
  author = {Robert E. Kayen and Walter A. Barnhardt and Scott Ashford and Kyle Rollins},
  year = {2012},
  doi = {10.1061/40523(298)3},
  url = {https://pubs.usgs.gov/publication/70033610},
  note = {Source identifier: 70033610}
}