@misc{indiciaeb9157225b07e,
  title = {Gaussian beams and their generalizations.},
  author = {E Zauderer},
  year = {1985},
  doi = {10.1103/physreva.31.3139},
  url = {https://pubmed.ncbi.nlm.nih.gov/9895867/},
  note = {Source identifier: 9895867}
}