%0 Journal Article %A A. B. Kycherov %A E. J. Oleinik %T Direct methods for solving large sparse equations based on the block two by two decomposition of the matrix %J Matematičeskoe modelirovanie %D 1993 %P 66-81 %V 5 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_1993_5_2_a5/ %G ru %F MM_1993_5_2_a5