@misc{indiciaee6ef9b8820b2,
  title = {Determination of half-value layer.},
  author = {E D TROUT and J P KELLEY and A C LUCAS},
  year = {1960},
  url = {https://pubmed.ncbi.nlm.nih.gov/13778215/},
  note = {Source identifier: 13778215}
}