TY - JOUR AU - Ts. B. Shoǐnzhurov TI - Some problems of the theory of cubic formulas in S. L. Sobolev non-isotropic spaces JO - Doklady Akademii Nauk PY - 1973 SP - 1036 EP - 1038 VL - 209 IS - 5 UR - http://geodesic.mathdoc.fr/item/DAN_1973_209_5_a8/ LA - ru ID - DAN_1973_209_5_a8 ER -