%0 Journal Article %A R.D. Lazarov %A R.E. Ewing %A ... %T Local refinement techniques for elliptic problems on cell-centered grids. III. Algebraic multilevel BEPS preconditioners. %J Numerische Mathematik %D 1991 %P 431-452 %V 59 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1991__59_8_133559/ %F NUMA_1991__59_8_133559