@misc{indiciaeeec60f9a21f6,
  title = {Fibre-optic communications link for teaching.},
  author = {A R Williams},
  year = {1987},
  doi = {10.1042/bst0150356},
  url = {https://pubmed.ncbi.nlm.nih.gov/3622913/},
  note = {Source identifier: 3622913}
}