@misc{indiciae41f088360d7d,
  title = {Modified X waves with improved field properties.},
  author = {T K Song and J Lu and J F Greenleaf},
  year = {1993},
  doi = {10.1177/016173469301500104},
  url = {https://pubmed.ncbi.nlm.nih.gov/8328118/},
  note = {Source identifier: 8328118}
}