@misc{indiciae15b8ab8dc3a3,
  title = {SI units.},
  author = {J E Trapnell},
  year = {1977},
  doi = {10.1136/bmj.2.6098.1357-c},
  url = {https://pubmed.ncbi.nlm.nih.gov/589209/},
  note = {Source identifier: 589209}
}