@misc{12298,
  author = {Joachim Haga and Hans Langtangen and Bj{\o}rn Nielsen and Harald Osnes},
  title = {On the Perfermance of an Algebraic Multigrid Preconditioner for the Pressure Equationwith Highly Discontinuous Media},
  year = {2009},
  journal = {Talk at MekIT{\textquoteright}09: Fifth National Conference on Computational Mechanics, Trondheim, May 26-27},
}