@Article{SCI:Tri2002b,
  author =    "X. Tricoche and G. Scheuermann and H. Hagen",
  title =     "Scaling the Topology of Symmetric Second Order
              Tensor Fields",
  journal =   "Hierarchical and Geometrical Methods in Scientific
              Visualization",
  pages =     "171-184",
  year =      "2002",
  publisher = "Springer, Berlin",
  url =       "http://www.sci.utah.edu/publications/tricoche02/scaling.pdf",
}