%0 Journal Article %A M. K. Akbarov %T On the quadratic mean over arithmetic progressions of the Fourier coefficients of cusp forms %J Izvestiya. Mathematics %D 1984 %P 191-209 %V 22 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1984_22_2_a0/ %G en %F IM2_1984_22_2_a0