@misc{W2092105345,
  author = {H. J. Briegel and Wolfgang Dür and J. I. Cirac and P. Zoller},
  title = {Quantum Repeaters: The Role of Imperfect Local Operations in Quantum Communication},
  year = {1998},
  howpublished = {Physical Review Letters},
  doi = {https://doi.org/10.1103/physrevlett.81.5932}
}