We use the Hausdorff pseudocharacter to bound the cardinality and the Lindelöf degree of κ-Lindelöf Hausdorff spaces.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-cm121-2-8, author = {Alejandro Ram\'\i rez-P\'aramo}, title = {On $\kappa$-Lindel\"of spaces}, journal = {Colloquium Mathematicae}, volume = {120}, year = {2010}, pages = {265-271}, zbl = {1215.54006}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm121-2-8} }
Alejandro Ramírez-Páramo. On κ-Lindelöf spaces. Colloquium Mathematicae, Tome 120 (2010) pp. 265-271. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm121-2-8/