@misc{indiciae4f13a23c1139,
  title = {Algebraic multigrid preconditioning of the Hessian in optimization constrained by a partial differential equation},
  author = {Barker, Andrew T. and Drăgănescu, Andrei},
  year = {2020},
  doi = {10.1002/nla.2333},
  url = {https://www.osti.gov/biblio/1786516},
  note = {Source identifier: 1786516}
}