@misc{indiciae64fc76ff142a,
  title = {A finite-difference approximate-factorization algorithm for solution of the unsteady transonic small-disturbance equation},
  author = {Batina, John T.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19940028359},
  note = {Source identifier: 19940028359}
}