%0 Journal Article %A I. P. Gavriljuk %A V. G. Prikazchikov %A A. N. Khimich %T Accuracy of the solution of a difference boundary value problem for a fourth-order elliptic operator with mixed boundary conditions %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1986 %P 1821-1830 %V 26 %N 12 %U http://geodesic.mathdoc.fr/item/ZVMMF_1986_26_12_a5/ %G ru %F ZVMMF_1986_26_12_a5