@misc{indiciaea30780261d0e,
  title = {New tissue-equivalent phantom materials for negative pions.},
  author = {K R Smith and D F Jackson},
  year = {1987},
  doi = {10.1088/0031-9155/32/2/008},
  url = {https://pubmed.ncbi.nlm.nih.gov/3562536/},
  note = {Source identifier: 3562536}
}