%0 Journal Article %A V. S. Shul'man %T The relation between lebesgue integrable and Birkhoff--Khinchin summable functions %J Matematičeskie zametki %D 1971 %P 219-228 %V 10 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1971_10_2_a11/ %G ru %F MZM_1971_10_2_a11