%0 Journal Article %A B. S. Kashin %A I. V. Limonova %T Selecting a~dense weakly lacunary subsystem in a~bounded orthonormal system %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2019 %P 956-958 %V 74 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2019_74_5_a8/ %G en %F RM_2019_74_5_a8