TY - JOUR AU - Kh. Kh. Burchaev AU - G. Yu. Ryabykh TI - Properties of extremal elements in the duality relation for Hardy spaces JO - Vladikavkazskij matematičeskij žurnal PY - 2018 SP - 5 EP - 19 VL - 20 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMJ_2018_20_4_a0/ LA - ru ID - VMJ_2018_20_4_a0 ER -