@INPROCEEDINGS{GeRu99,
  author = {Gerstner,T. and Rumpf,M.},
  title = {Multiresolutional Parallel Isosurface Extraction based on Tetrahedral
	Bisection},
  booktitle = {International Workshop on Volume Graphics},
  year = {1999},
  publisher = {Springer},
  pdf = {http://numod.ins.uni-bonn.de/research/papers/public/GeRu99.pdf}
}