@misc{indiciaeb853d5d51d5f,
  title = {Radiation protection studies with polyethylene.},
  author = {R M Kopp and A Charlesby},
  year = {1966},
  doi = {10.1016/0020-708x(66)90128-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/4289941/},
  note = {Source identifier: 4289941}
}