%0 Journal Article %A E. M. Nikishin %A P. L. Ul'yanov %T On absolute and unconditional convergence %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1967 %V 22 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1967_22_3_a11/ %G ru %F RM_1967_22_3_a11