@misc {Simula.sc.1146,
	title = {On the Perfermance of an Algebraic Multigrid Preconditioner for the Pressure Equationwith Highly Discontinuous Media},
	howpublished = {Talk at MekIT{\textquoteright}09: Fifth National Conference on Computational Mechanics, Trondheim, May 26-27},
	year = {2009},
	author = {Joachim Berdal {Haga} and Hans Petter {Langtangen} and Nielsen, Bj{\o}rn Fredrik and Osnes, Harald}
}
