@misc{indiciae87807d0002d8,
  title = {The Surface-Tension at the Interface Between Two Liquids.},
  author = {W D Harkins and E C Humphery},
  year = {1915},
  doi = {10.1073/pnas.1.12.585},
  url = {https://pubmed.ncbi.nlm.nih.gov/16576077/},
  note = {Source identifier: 16576077}
}