TY - JOUR AU - I. V. Boykov TI - The principle of compact approximation in the perturbed Galerkin method JO - Doklady Akademii Nauk PY - 1974 SP - 11 EP - 14 VL - 215 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1974_215_1_a0/ LA - ru ID - DAN_1974_215_1_a0 ER -