%0 Journal Article
%A Dimitrije Ugrin-Sparac
%T Lower bounds for sums of powers of different natural numbers expressed as functions of the sum of these numbers.
%J Journal für die reine und angewandte Mathematik
%D 1970
%P 74-80
%V 245
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JRAM_1970__245_151058/
%F JRAM_1970__245_151058