@misc{indiciaef0590ad5d03c,
  title = {Alchemy: origin or origins?},
  author = {H J Sheppard},
  year = {1970},
  doi = {10.1179/amb.1970.17.2.69},
  url = {https://pubmed.ncbi.nlm.nih.gov/11609620/},
  note = {Source identifier: 11609620}
}