@misc{indiciaef23153a2ba62,
  title = {Causality and tachyons.},
  author = {J H Fremlin},
  year = {1970},
  doi = {10.1038/226194b0},
  url = {https://pubmed.ncbi.nlm.nih.gov/16057170/},
  note = {Source identifier: 16057170}
}