@InProceedings{simvis05-weiskopf,
  author = {Weiskopf, D. and Botchen, R. and Ertl, T.},
  title  = {{Interactive Visualization of Divergence in Unsteady Flow by Level-Set Dye Advection}},
  year   = {2005},
  pages  = {221--232},
  booktitle = {Proceedings of SimVis 2005}
}