@misc{indiciae9b464fa9a117,
  title = {Modified method of carbon making.},
  author = {P H SILVER},
  year = {1957},
  doi = {10.1038/1801415a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/13493538/},
  note = {Source identifier: 13493538}
}