@misc{indiciae4fdf8e9430a9,
  title = {Mid-Field Sonic Boom Extrapolation Methodology},
  author = {Cheung, Samson and Davis, Sanford and Tu, Eugene},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20000027448},
  note = {Source identifier: 20000027448}
}