@misc{indiciae304bf654ad1c,
  title = {A microvolt calibrator.},
  author = {I Marshall},
  year = {1987},
  doi = {10.1088/0143-0815/8/4/010},
  url = {https://pubmed.ncbi.nlm.nih.gov/3427878/},
  note = {Source identifier: 3427878}
}