@misc{indiciae01898abc10d0,
  title = {Coupling between different oscillation branches in a waveguide-mode free-electron laser.},
  author = {Y Kawamura and BC Lee and M Kawai and K Toyoda},
  year = {1991},
  doi = {10.1103/physrevlett.67.832},
  url = {https://pubmed.ncbi.nlm.nih.gov/10045000/},
  note = {Source identifier: 10045000}
}