%0 Journal Article
%A O. E. Galkin
%A S. Yu. Galkina
%T Global extrema of the Delange function, bounds for digital sums and concave functions
%J Sbornik. Mathematics
%D 2020
%P 336-372
%V 211
%N 3
%U http://geodesic.mathdoc.fr/item/SM_2020_211_3_a1/
%G en
%F SM_2020_211_3_a1