@misc{indiciae28dec7d34ca4,
  title = {Professional practice. A call for mapmakers.},
  author = {J Koerner},
  doi = {10.1016/8755-7223(93)90018-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/8505434/},
  note = {Source identifier: 8505434}
}