TY - JOUR AU - V. D. Stepanov TI - On characteristic properties of integral convolution operators JO - Doklady Akademii Nauk PY - 1981 SP - 806 EP - 808 VL - 260 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1981_260_4_a8/ LA - ru ID - DAN_1981_260_4_a8 ER -