@misc{indiciae4e2684d927c4,
  title = {Crosswell seismic tomography at the USGS fractured rock research site data collection, data processing, and tomograms},
  author = {K.J. Ellefson and J. E. Kibler and P. A. Hsieh and A.M. Shapiro},
  year = {1998},
  doi = {10.3133/ofr98510},
  url = {https://pubs.usgs.gov/publication/ofr98510},
  note = {Source identifier: ofr98510}
}