%0 Journal Article
%A S. V. Dvoryaninov
%T On impossibility to construct a center of a circle by a ruler alone based on the method of visual constructions
%J Matematičeskoe obrazovanie
%D 2019
%P 9-12
%V 89
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MO_2019_89_1_a1/
%G ru
%F MO_2019_89_1_a1