@misc{indiciae69caa6583036,
  title = {Adaptive unstructured mesh methods for steady viscous flow},
  author = {Hassan, O. and Morgan, K. and Probert, E. J. and Peraire, J. and Thareja, R. R.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910056090},
  note = {Source identifier: 19910056090}
}