@misc{indiciae3cf9062ee557,
  title = {Theoretical problems related to sonic boom},
  author = {Caughey, D. A. and Gardner, J. H. and Hayes, W. D. and Weiskopf, F. B., Jr.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710018890},
  note = {Source identifier: 19710018890}
}