@misc{indiciaea10fb818ba48,
  title = {John Stephen MacMahon.},
  author = {A S Johnson},
  year = {1968},
  doi = {10.5694/j.1326-5377.1968.tb82796.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4879315/},
  note = {Source identifier: 4879315}
}