%0 Journal Article %A A. D. Iskenderov %A G. Ya. Yagubov %T A variational method for solving an inverse problem of determining %J Doklady Akademii Nauk %D 1988 %P 1044-1048 %V 303 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_303_5_a3/ %G ru %F DAN_1988_303_5_a3