%0 Journal Article %A V. I. Voytitsky %T Functional mean values of a set of real numbers, their comparison and properties %J Matematičeskoe obrazovanie %D 2017 %P 12-19 %V 84 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2017_84_4_a2/ %G ru %F MO_2017_84_4_a2