TY - JOUR AU - V. F. Babenko AU - N. V. Parfinovich TI - On the Exact Values of the Best Approximations of Classes of Differentiable Periodic Functions by Splines JO - Matematičeskie zametki PY - 2010 SP - 669 EP - 683 VL - 87 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2010_87_5_a2/ LA - ru ID - MZM_2010_87_5_a2 ER -