@article{SchelthoffBasermann2007,
  author    = {Christof Schelthoff and Achim Basermann},
  title     = {Polynomial Preconditioning for the Conjugate Gradient Method on Massively Parallel Systems},
  journal   = {Workshop {\"u}ber Parallelverarbeitung : Lessach ({\"O}sterreich), 26.9.-30.9.1994 / Institut f{\"u}r Informatik, Clausthal-Zellerfeld. Klaus Ecker; J{\"o}rg Apsel},
  pages     = {150 -- 167},
  year      = {2007},
}