@misc{indiciaea4ab57646b9e,
  title = {A geothermal measuring circuit},
  author = {J.H. Swartz},
  year = {1954},
  doi = {10.1126/science.120.3119.573},
  url = {https://pubs.usgs.gov/publication/70011005},
  note = {Source identifier: 70011005}
}