%0 Journal Article
%A Porter, Jack R.
%A Woods, R. Grant
%T The Poset of Perfect Irreducible Images of a Space
%J Canadian journal of mathematics
%D 1989
%P 213-233
%V 41
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1989-011-7/
%R 10.4153/CJM-1989-011-7
%F 10_4153_CJM_1989_011_7