@misc{indiciaeb2bd18d278a0,
  title = {Multigrid Preconditioning for a Space-Time Spectral-Element Discontinuous-Galerkin Solver},
  author = {Franciolini, Matteo and Murman, Scott},
  year = {2020},
  url = {https://ntrs.nasa.gov/citations/20200000480},
  note = {Source identifier: 20200000480}
}