@misc{indiciaeb4d7a61fcdf5,
  title = {A method of assaying x-ray developer activity.},
  author = {L Pentel and M Hyman},
  year = {1967},
  doi = {10.1016/0030-4220(67)90510-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/5234861/},
  note = {Source identifier: 5234861}
}