@misc{indiciae6b07fbad8370,
  title = {Measuring radioactive materials.},
  author = {S B Garfinkel and W B Mann},
  year = {1971},
  doi = {10.1126/science.171.3970.433},
  url = {https://pubmed.ncbi.nlm.nih.gov/5539200/},
  note = {Source identifier: 5539200}
}