@misc{indiciae738181724f87,
  title = {Use of borehole radar tomography to monitor steam injection in fractured limestone},
  author = {C. Gregoire and P. K. Joesten},
  year = {2006},
  doi = {10.3997/1873-0604.2006009},
  url = {https://pubs.usgs.gov/publication/70028619},
  note = {Source identifier: 70028619}
}