@article{Mehrmann_2026,
  title={{Iterative solvers for partial differential equations with dissipative structure: operator preconditioning and optimal control}},
  volume={65},
  ISSN={1068-9613},
  DOI={10.1553/etna_vol65s226},
  journal={ETNA - Electronic Transactions on Numerical Analysis},
  publisher={Osterreichische Akademie der Wissenschaften, Verlag},
  author={Mehrmann, Volker and Schaller, Manuel and Stoll, Martin},
  year={2026},
  pages={226--253}
}