@Article{CompVisSci99,
  author = 	 {Teitzel, C. AND Hopf, M. AND Grosso, R. AND Ertl, T.},
  title = 	 {Volume Visualization on Sparse Grids},
  journal = 	 {Computing and Visualization in Science},
  year = 	 {1999},
  volume = 	 {2},
  pages = 	 {47--59},
}