%0 Journal Article %A A. V. Kasyanchuk %T Series in the system $\{f(nx)\}_{n=1}^\infty$ %J Izvestiya. Mathematics %D 1986 %P 101-113 %V 27 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1986_27_1_a5/ %G en %F IM2_1986_27_1_a5