TY - JOUR AU - A. S. Romanyuk TI - Best Trigonometric Approximations for Some Classes of Periodic Functions of Several Variables in the Uniform Metric JO - Matematičeskie zametki PY - 2007 SP - 247 EP - 261 VL - 82 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2007_82_2_a9/ LA - ru ID - MZM_2007_82_2_a9 ER -