@misc{indiciae020d992aa3a7,
  title = {Preconditioned conjugate gradient methods for the compressible Navier-Stokes equations},
  author = {Venkatakrishnan, V.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910060485},
  note = {Source identifier: 19910060485}
}