@misc{indiciaee73c061bc56e,
  title = {A purification method by uncoated charcoal.},
  author = {N Cerulli and L Politi and A R D'Angelo and R Scandurra},
  year = {1987},
  doi = {10.1007/978-1-4684-5445-1\_30},
  url = {https://pubmed.ncbi.nlm.nih.gov/3447435/},
  note = {Source identifier: 3447435}
}