@InProceedings{SCI:Tri2001c,
  author =    "X. Tricoche and G. Scheuermann and H. Hagen",
  title =     "Topology-based Visualization of Time-Dependent
              {2D} Vector Fields",
  booktitle = "Proceedings of the Joint Eurographics-{IEEE}
              {TCVG} Symposium on Visualization: Data
              Visualization 2001",
  pages =     "117--126",
  year =      "2001",
  url =       "http://www.sci.utah.edu/publications/tricoche01/timedependent.pdf",
}