@article {14113,
	title = {Performance Enhancements and Parallel Algorithms for Two Multilevel Preconditioners},
	journal = {SIAM Journal on Scientific ComputingSIAM J. Sci. Comput.},
	volume = {14},
	year = {1993},
	month = {1993///},
	pages = {890 - 890},
	isbn = {10648275},
	doi = {10.1137/0914055},
	url = {http://link.aip.org/link/SJOCE3/v14/i4/p890/s1\&Agg=doi},
	author = {Elman, Howard and Guo,Xian-Zhong}
}
