@misc{indiciae312500cacd68,
  title = {Dynamic quantum-noise reduction in multilevel-laser systems.},
  author = {H Ritsch and P Zoller},
  year = {1992},
  doi = {10.1103/physreva.45.1881},
  url = {https://pubmed.ncbi.nlm.nih.gov/9907176/},
  note = {Source identifier: 9907176}
}