@misc{indiciae246ebb6ab0ad,
  title = {Sonic-boom propagation through a stratified atmosphere.},
  author = {Hayes, W. D. and Runyan, H. L., Jr.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720038238},
  note = {Source identifier: 19720038238}
}