TY - JOUR AU - N. N. Kholshchevnikova TI - On the category of $\mathcal U$-sets for series in the Walsh system JO - Matematičeskie zametki PY - 1993 SP - 129 EP - 151 VL - 53 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1993_53_5_a14/ LA - ru ID - MZM_1993_53_5_a14 ER -