@misc{indiciae9134e544dd3c,
  title = {Scaling function for free-electron-laser gain including alternating-gradient focusing.},
  author = {LH Yu and CM Hung and D Li and S Krinsky},
  year = {1995},
  doi = {10.1103/physreve.51.813},
  url = {https://pubmed.ncbi.nlm.nih.gov/9962714/},
  note = {Source identifier: 9962714}
}