TY - JOUR AU - V. D. Stepanov AU - E. P. Ushakova TI - Hardy--Steklov Operators and the Duality Principle in Weighted First-Order Sobolev Spaces on the Real Axis JO - Matematičeskie zametki PY - 2019 SP - 108 EP - 122 VL - 105 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2019_105_1_a9/ LA - ru ID - MZM_2019_105_1_a9 ER -