%0 Journal Article %A V. P. Smyshlyaev %T High-frequency asymptotics of the Green function of the Helmholtz %J Doklady Akademii Nauk %D 1989 %P 74-77 %V 309 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_309_1_a16/ %G ru %F DAN_1989_309_1_a16