TY - JOUR AU - Yu. N. Subbotin TI - Extremal problems of functional interpolation, and mean interpolation splines JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1975 SP - 118 EP - 173 VL - 138 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1975_138_a5/ LA - ru ID - TM_1975_138_a5 ER -