%0 Journal Article
%A CHRISTIAN GRAM
%T A remark on the construction of the centre of a circle by means of the ruler
%J Mathematica Scandinavica
%D 1956
%P 157-160
%V 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MS2_1956__4_165619/
%F MS2_1956__4_165619