%0 Journal Article %A G. F. Maslennikova %T Asymptotics of the solution of the Neumann problem for the Helmholtz operator in the exterior of a thin body of revolution %J Differencialʹnye uravneniâ %D 1985 %P 1635-1638 %V 21 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_9_a28/ %G ru %F DE_1985_21_9_a28