@inproceedings{elman1999efficient,
  title = "Efficient preconditioning of the linearized Navier-Stokes equations",
  author = "Elman, H. and Wathen, A. and Silvester, D. and Elman, H. and Kay, D.",
  year = "1999",
  booktitle = "J. Comp. Appl. Math",
  organization = "Citeseer",
}