@techreport{knoll2009dspf,
  title={{Volume Ray Casting with Peak Finding and Differential Sampling}},
  author={Knoll, A. and Hijazi, Y. and Westerteiger, R. and Schott, M. and Hansen, C. and Hagen, H.},
  note={Conditionally accepted to ACM Transactions on Visualization and Computer Graphics, (Proceedings of IEEE Visualization 2009)},
  year={2009}
}