@misc{indiciae23c6e497e8a4,
  title = {Numerical solution techniques for unsteady transonic aerodynamics problems},
  author = {Ballhaus, W. F. and Bridgeman, J. O.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800024871},
  note = {Source identifier: 19800024871}
}