@misc{indiciae0f21336e65eb,
  title = {Chromate in postage stamps.},
  author = {S Fregert and B Gruvberger and J C Mitchell},
  year = {1975},
  doi = {10.1111/j.1600-0536.1975.tb05461.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1235287/},
  note = {Source identifier: 1235287}
}