%0 Journal Article %A S. B. Vakarchuk %T On Estimates in~$L_2(\mathbb{R})$ of Mean $\nu$-Widths of Classes of Functions Defined via the Generalized Modulus of Continuity of~$\omega_{\mathcal{M}}$ %J Matematičeskie zametki %D 2019 %P 198-211 %V 106 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2019_106_2_a3/ %G ru %F MZM_2019_106_2_a3