%0 Journal Article %A S. A. Stasyuk %T Best Approximations of Periodic Functions of Several Variables from the Classes $B^\Omega_{p,\theta}$ %J Matematičeskie zametki %D 2010 %P 108-121 %V 87 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2010_87_1_a11/ %G ru %F MZM_2010_87_1_a11