TY - JOUR AU - R. L. Frum-Ketkov TI - Some properties of spaces of functions of finite smoothness JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1965 VL - 20 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1965_20_4_a17/ LA - ru ID - RM_1965_20_4_a17 ER -