%0 Journal Article %A R. K. Tagiyev %T Estimating the rate of convergence of the straight-line and regularization methods in the problem of optimal control of the coefficients of a hyperbolic equation %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1993 %P 189-194 %V 33 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1993_33_2_a2/ %G ru %F ZVMMF_1993_33_2_a2