%0 Journal Article %A N. P. Kuptsov %T Exact constants in the inequalities between norms of functions and their derivatives %J Matematičeskie zametki %D 1987 %P 313-319 %V 41 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1987_41_3_a3/ %G ru %F MZM_1987_41_3_a3