%0 Journal Article %A A. A. Talalyan %T On~some uniqueness properties of multiple trigonometric series and harmonic functions %J Izvestiya. Mathematics %D 1989 %P 627-654 %V 32 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1989_32_3_a8/ %G en %F IM2_1989_32_3_a8