@article {14138,
	title = {On the convergence of line iterative methods for cyclically reduced non-symmetrizable linear systems},
	journal = {Numerische Mathematik},
	volume = {67},
	year = {1994},
	month = {1994///},
	pages = {177 - 190},
	author = {Elman, Howard and Golub, G. H and Starke, G.}
}
