%0 Journal Article
%A Sun, Shu Hao
%T The class of $\aleph$-spaces is invariant of closed mappings with Lindelöf fibres
%J Commentationes Mathematicae Universitatis Carolinae
%D 1988
%P 351-354
%V 29
%N 2
%U http://geodesic.mathdoc.fr/item/CMUC_1988_29_2_a17/
%G en
%F CMUC_1988_29_2_a17