TY - JOUR AU - I. I. Tuzikova TI - An example of a~null-series with respect to an orthogonal multiplicative system of functions JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1985 SP - 52 EP - 59 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1985_5_a8/ LA - ru ID - IVM_1985_5_a8 ER -