@misc{indiciaeb1d0c85a982c,
  title = {Contributions to geophysics, 1941. Superposition in the interpretation of two-layer earth-resistivity curves},
  author = {Irwin Roman},
  year = {1941},
  doi = {10.3133/b927a},
  url = {https://pubs.usgs.gov/publication/b927A},
  note = {Source identifier: b927A}
}