@article {14118,
	title = {Block-Preconditioned Conjugate-Gradient-Like Methods for Numerical Reservoir Simulation},
	journal = {SPE Reservoir EngineeringSPERE},
	volume = {3},
	year = {1988},
	month = {1988/02//},
	isbn = {0885-9248},
	doi = {10.2118/13534-PA},
	url = {http://www.onepetro.org/mslib/servlet/onepetropreview?id=00013534\&soc=SPE},
	author = {Eisenstat, Stanley and Elman, Howard and Schlutz, Martin}
}
