@article{etna_vol12_pp88-112,
  author  = {M. Jes\'us Castel and Violeta Migall\'{o}n and Jos\'e Penad\'es},
  title   = {On parallel two-stage methods for Hermitian positive definite matrices with applications to preconditioning},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {12},
  year    = {2001},
  pages   = {88--112},
}