@misc{indiciaebb81d2cef2db,
  title = {Contact Potential Differences between Different Faces of Copper Single Crystals.},
  author = {H E Farnsworth and B A Rose},
  year = {1933},
  doi = {10.1073/pnas.19.8.777},
  url = {https://pubmed.ncbi.nlm.nih.gov/16577566/},
  note = {Source identifier: 16577566}
}