@misc{indiciaee45d1e973469,
  title = {Irregular Projective Invariants.},
  author = {E Kasner and J De Cicco},
  year = {1945},
  doi = {10.1073/pnas.31.4.123},
  url = {https://pubmed.ncbi.nlm.nih.gov/16578145/},
  note = {Source identifier: 16578145}
}