@techreport{elmanetal2002,
  title = "A preconditioner for the 3D Oseen equations",
  author = "H. Elman and D. Kay and D. Loghin and D. J. Silvester and A. J. Wathen",
  year = "2002",
  journal = "Oxford Numerical Analysis Group",
  number = "4",
  volume = "NA-02",
}