@misc{indiciaeb692e47c1757,
  title = {Non-Invasive Multigrid for Semi-Structured Grids.},
  author = {Harper, Graham Bennett},
  year = {2021},
  doi = {10.2172/1860309},
  url = {https://www.osti.gov/biblio/1860309},
  note = {Source identifier: 1860309}
}