@misc{indiciaefe3cdefe11ef,
  title = {Another variant in the C 3 system.},
  author = {P Teisberg},
  year = {1971},
  doi = {10.1111/j.1399-0004.1971.tb00290.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4112057/},
  note = {Source identifier: 4112057}
}