%0 Journal Article %A S. I. Solov'ev %T Error of the Bubnov–Galerkin method with perturbations for symmetric spectral problems with nonlinear entrance of the parameter %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1992 %P 675-691 %V 32 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1992_32_5_a1/ %G ru %F ZVMMF_1992_32_5_a1