%0 Journal Article %A R. K. Tagiyev %A R. S. Kasimova %T On the problem of optimal control in the coefficients of~an~elliptic equation %J Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences %D 2017 %P 278-291 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGTU_2017_21_2_a5/ %G ru %F VSGTU_2017_21_2_a5