TY - JOUR AU - V. P. Il'in TI - Existence and the optimal choice of the values of parameters in inequalities guaranteeing the validity of embedding theorems JO - Zapiski Nauchnykh Seminarov POMI PY - 1981 SP - 63 EP - 87 VL - 111 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1981_111_a3/ LA - ru ID - ZNSL_1981_111_a3 ER -