@misc{indiciae056cd473e86f,
  title = {Developments in liquid scintillation counting since 1963.},
  author = {J H Parmentier and F E ten Haaf},
  year = {1969},
  doi = {10.1016/0020-708x(69)90119-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/4891907/},
  note = {Source identifier: 4891907}
}