@misc{indiciae47c80a2b4325,
  title = {Displacement Interferometry in Connection with U-Tubes.},
  author = {C Barus},
  year = {1917},
  doi = {10.1073/pnas.3.5.334},
  url = {https://pubmed.ncbi.nlm.nih.gov/16586731/},
  note = {Source identifier: 16586731}
}