@misc{indiciae902cb22f9e82,
  title = {A Critical Study of Agglomerated Multigrid Methods for Diffusion},
  author = {Thomas, James L. and Nishikawa, Hiroaki and Diskin, Boris},
  year = {2009},
  url = {https://ntrs.nasa.gov/citations/20090024830},
  note = {Source identifier: 20090024830}
}