@article{etna_vol60_pp221-237,
  author  = {Susanne Bradley and Chen Greif},
  title   = {Augmentation-based preconditioners for saddle-point systems with singular leading blocks},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {60},
  year    = {2024},
  pages   = {221--237},
  doi     = {10.1553/etna_vol60s221},
}