@misc{indiciaed9247f5338ca,
  title = {Extragalactic faraday rotation.},
  author = {H Arp},
  year = {1971},
  doi = {10.1038/232463a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/16077537/},
  note = {Source identifier: 16077537}
}