[DaSilva et al., 2002]
Marco DaSilva, Song Zhang, Cagatay Demiralp, and David H. Laidlaw. Visualizing the Differences between Diffusion Tensor Volume Images. In Proceedings ISMRM Workshop in Diffusion MRI: Biophysical Issues, pages 237-238, March 2002. (pdf) (bibtex: DaSilva-2002-VDD).