@misc{indiciaece480560405e,
  title = {Relaxation schemes for Chebyshev spectral multigrid methods},
  author = {Kang, Yimin and Fulton, Scott R.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940019215},
  note = {Source identifier: 19940019215}
}