@misc{indiciaeb468058bdbd3,
  title = {Maximum microwave conversion efficiency from a modulated intense relativistic electron beam.},
  author = {DG Colombant and YY Lau},
  year = {1992},
  doi = {10.1103/physreva.45.r2179},
  url = {https://pubmed.ncbi.nlm.nih.gov/9907235/},
  note = {Source identifier: 9907235}
}