@misc{indiciaea729c6a2ae25,
  title = {The U-Tube Absolute Electrometer.},
  author = {C Barus},
  year = {1921},
  doi = {10.1073/pnas.7.8.242},
  url = {https://pubmed.ncbi.nlm.nih.gov/16576599/},
  note = {Source identifier: 16576599}
}