TY - JOUR AU - S. V. Uspenskii TI - Mixed derivatives of functions summable with a weight JO - Doklady Akademii Nauk PY - 1967 SP - 47 EP - 49 VL - 173 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1967_173_1_a11/ LA - ru ID - DAN_1967_173_1_a11 ER -