@misc{indiciaecd222ba670df,
  title = {Radioactive ion exchange surfaces, versatile radiation sources.},
  author = {A E JOHNSON and A S BLUM},
  year = {1960},
  doi = {10.1016/0020-708x(60)90123-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/14407412/},
  note = {Source identifier: 14407412}
}