@misc{indiciae3c188fcc5151,
  title = {Identifying coherent structures in nonlinear wave propagation.},
  author = {William I. Newman and David K. Campbell and James M. Hyman},
  year = {1991},
  doi = {10.1063/1.165813},
  url = {https://pubmed.ncbi.nlm.nih.gov/12779899/},
  note = {Source identifier: 12779899}
}