%0 Journal Article
%A A. P. Robertson
%A W. J. Robertson
%T On the closed graph theorem
%J Matematika
%D 1960
%P 73-78
%V 4
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAT_1960_4_6_a4/
%G ru
%F MAT_1960_4_6_a4