@InProceedings{isfv06-schafhitzel,
  author = {Schafhitzel, T. and Weiskopf, D. and Ertl, T.},
  title  = {{Interactive Investigation and Visualization of 3D Vortex Structures}},
  year   = {2006},
  booktitle = {{Electronic Proceedings International Symposium on Flow Visualization '06}}
}