@misc{indiciae951fe2c35757,
  title = {Information-theoretic limits to quantum cryptography.},
  author = {SM Barnett and SJ Phoenix},
  year = {1993},
  doi = {10.1103/physreva.48.r5},
  url = {https://pubmed.ncbi.nlm.nih.gov/9909676/},
  note = {Source identifier: 9909676}
}