TY - JOUR AU - È. M. Muhamadiev AU - M. G. Yumagulov TI - Convolution-type operators in spaces of summable functions JO - Doklady Akademii Nauk PY - 1997 SP - 23 EP - 25 VL - 353 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1997_353_1_a5/ LA - ru ID - DAN_1997_353_1_a5 ER -