I. Berre, H. K. Dahle, B. Eikemo, K.-A. Lie, and J. R. Natvig. A discontinuous Galerkin method for computing time-of-flight in heterogeneous reservoirs. SIAM Geosciences 05, Avignon, France, June 7-10, 2005.
H. K. Dahle, G. T. Eigestad, H. Hægland, K.-A. Lie, and I. Aavatsmark. Improved streamlines and time-of-flight for streamline simulation on irregular grids. SIAM Geosciences 05, Avignon, France, June 7-10, 2005.