%0 Journal Article %A L. N. Dovbysh %T Stability of Ritz's method for problems in the spectral theory of operators %J Informatics and Automation %D 1965 %P 78-92 %V 84 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1965_84_a6/ %G ru %F TRSPY_1965_84_a6