%0 Journal Article %A V. M. Tikhomirov %T The $\varepsilon$-entropy of certain classes of periodic functions %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1962 %V 17 %N 6 %U http://geodesic.mathdoc.fr/item/RM_1962_17_6_a9/ %G ru %F RM_1962_17_6_a9