@Article{SCI:Ham2008a,
  author =    "C.W. Hamman and J.C. Klewicki and R.M. Kirby",
  title =     "On the Lamb Vector Divergence in Navier-Stokes
              Flows",
  journal =   "Journal of Fluid Mechanics",
  volume =    "610",
  pages =     "261--284",
  year =      "2008",
  keywords =  "navier-stokes, flow visualization, computational
              fluid dynamics, cfd",
}