@article{etna_vol14_pp1-19,
  author  = {Bernhard Beckermann and Arno B. J. Kuijlaars},
  title   = {Superlinear CG convergence for special right-hand sides},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {14},
  year    = {2002},
  pages   = {1--19},
}