@misc{indiciae2eb4108f2eda,
  title = {David Clarkson Maddison (1927-1981).},
  author = {P J McEwan},
  year = {1982},
  doi = {10.1016/0277-9536(82)90200-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/7048548/},
  note = {Source identifier: 7048548}
}