@misc{indiciaeb8a7a26978e7,
  title = {Calculation of resistance and error in an electric analog of steady flow through nonhomogeneous aquifers},
  author = {Robert W. Stallman},
  year = {1963},
  doi = {10.3133/wsp1544g},
  url = {https://pubs.usgs.gov/publication/wsp1544G},
  note = {Source identifier: wsp1544G}
}