@article{Ishikawa:2012f1,
  author = "Ishikawa, Ken-Ichi",
  title = "{Multi-block/multi-core SSOR preconditioner for the QCD quark solver for K computer}",
  doi = "10.22323/1.164.0188",
  journal = "PoS",
  year = 2012,
  volume = "Lattice 2012",
  pages = "188"
}