%0 Journal Article %A E. I. Berezhnoi %T Banach spaces, concave functions, and interpolation of linear operators %J Funkcionalʹnyj analiz i ego priloženiâ %D 1980 %P 62-63 %V 14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1980_14_4_a8/ %G ru %F FAA_1980_14_4_a8