%0 Journal Article
%A S. Ya. Havinson
%T Extremum problems for functions satisfying some supplementary restrictions inside the region and the application 

%J Doklady Akademii Nauk
%D 1960
%P 270-273
%V 135
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1960_135_2_a7/
%G ru
%F DAN_1960_135_2_a7