%0 Journal Article
%A Yu. E. Anikonov
%T Formulas in inverse problems for second-order equations
%J Doklady Akademii Nauk
%D 1991
%P 848-850
%V 320
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1991_320_4_a17/
%G ru
%F DAN_1991_320_4_a17