%0 Journal Article
%A Yu. G. Dutkevich
%T Diameter of the set of midpoints of chords of a~bounded closed set
%J Matematičeskie zametki
%D 1970
%P 831
%V 8
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1970_8_6_a16/
%G ru
%F MZM_1970_8_6_a16