@InProceedings{wester_vis00,
  author = {Westermann,R. and Johnson,C. and Ertl,T.},
  title  = {{A Level-Set Method for Flow Visualization}},
  year   = {2000},
  pages  = {147-152,550},
  organization = {{IEEE}},
  booktitle = {{Proceedings of IEEE Visualization '00}}
}