@misc{indiciae1c7889b55165,
  title = {Angular momentum effect and enhanced efficiency in the electron cyclotron maser.},
  author = {SC Zhang and S Liu},
  year = {1988},
  doi = {10.1103/physreva.38.849},
  url = {https://pubmed.ncbi.nlm.nih.gov/9900449/},
  note = {Source identifier: 9900449}
}