@misc{indiciaef768e2b59982,
  title = {Upwind second-order difference schemes and applications in unsteady aerodynamic flows},
  author = {Warming, R. F. and Beam, R. M.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750050109},
  note = {Source identifier: 19750050109}
}