%0 Journal Article %A A. A. Karatsuba %T A~refinement of theorems on the number of zeros lying on intervals of the critical line of certain Dirichlet series %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1992 %P 219-220 %V 47 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1992_47_2_a7/ %G en %F RM_1992_47_2_a7