%0 Journal Article %A V. A. Nogin %A B. S. Rubin %T Estimates for potentials with oscillating kernels that are connected with the Helmholtz equation %J Differencialʹnye uravneniâ %D 1990 %P 1608-1613 %V 26 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_9_a16/ %G ru %F DE_1990_26_9_a16