@misc{indiciae7c70de5787ce,
  title = {Some tests on measuring methods for indoor radon using activated charcoal.},
  author = {N Hagberg},
  year = {1985},
  doi = {10.1016/0048-9697(85)90245-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/4081742/},
  note = {Source identifier: 4081742}
}