@misc{indiciae89674251bc88,
  title = {Micromaser spectrum.},
  author = {MO Scully and H Walther and GS Agarwal and T Quang and W Schleich},
  year = {1991},
  doi = {10.1103/physreva.44.5992},
  url = {https://pubmed.ncbi.nlm.nih.gov/9906661/},
  note = {Source identifier: 9906661}
}