TY - JOUR AU - R. Oinarov TI - Two-sided norm estimates for certain classes of integral operators JO - Informatics and Automation PY - 1993 SP - 240 EP - 250 VL - 204 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_1993_204_a12/ LA - ru ID - TRSPY_1993_204_a12 ER -