@misc{indiciae47ea9bfff0d0,
  title = {Motion and Collineations in General Space.},
  author = {M S Knebelman},
  year = {1927},
  doi = {10.1073/pnas.13.8.607},
  url = {https://pubmed.ncbi.nlm.nih.gov/16587236/},
  note = {Source identifier: 16587236}
}