@article{106644, author = {Shu Hao Sun}, title = {The class of $\aleph$-spaces is invariant of closed mappings with Lindel\"of fibres}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {029}, year = {1988}, pages = {351-354}, zbl = {0656.54021}, mrnumber = {957403}, language = {en}, url = {http://dml.mathdoc.fr/item/106644} }
Sun, Shu Hao. The class of $\aleph$-spaces is invariant of closed mappings with Lindelöf fibres. Commentationes Mathematicae Universitatis Carolinae, Tome 029 (1988) pp. 351-354. http://gdmltest.u-ga.fr/item/106644/
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