%0 Journal Article
%A Strang, Gilbert
%T The Nucleus of a Set
%J Canadian mathematical bulletin
%D 1968
%P 65-72
%V 11
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-009-8/
%R 10.4153/CMB-1968-009-8
%F 10_4153_CMB_1968_009_8