@misc{indiciae7020dc7fd414,
  title = {Optimal order multigrid preconditioners for the distributed control of parabolic equations with coarsening in space and time},
  author = {Drăgănescu, Andrei and Hajghassem, Mona},
  year = {2022},
  doi = {10.1080/10556788.2021.2022145},
  url = {https://www.osti.gov/biblio/1979227},
  note = {Source identifier: 1979227}
}