%0 Journal Article %A M. N. Yakovlev %T Estimates of the solutions systems of linear algebraic equations and its applications to investigation of convergence %J Zapiski Nauchnykh Seminarov POMI %D 1980 %P 174-180 %V 102 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1980_102_a12/ %G ru %F ZNSL_1980_102_a12