TY - JOUR AU - N. B. Pogosyan TI - Representation of measurable functions by orthogonal series JO - Sbornik. Mathematics PY - 1975 SP - 93 EP - 102 VL - 27 IS - 1 UR - http://geodesic.mathdoc.fr/item/SM_1975_27_1_a7/ LA - en ID - SM_1975_27_1_a7 ER -