%0 Journal Article
%A Hong, Sung Sa
%T Extensive Subcategories of the Category of T 1-spaces
%J Canadian journal of mathematics
%D 1975
%P 311-318
%V 27
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-037-7/
%R 10.4153/CJM-1975-037-7
%F 10_4153_CJM_1975_037_7