@article{kay2006block,
  title = "A Block Preconditioner for High-Order Mixed Finite Element Approximations to the Navier--Stokes Equations",
  author = "Kay, David and Lungu, Emil",
  year = "2006",
  journal = "SIAM Journal on Scientific Computing",
  number = "6",
  pages = "1867--1880",
  publisher = "Society for Industrial and Applied Mathematics",
  volume = "27",
}