TY - JOUR AU - P. L. Ul'yanov TI - G.~Alexits, Convergence problems of orthogonal series [Konvergenzprobleme der Orthogonalreihen] (review) JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1961 VL - 16 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1961_16_2_a30/ LA - ru ID - RM_1961_16_2_a30 ER -