Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1994__44_3_a4, author = {Dlaska, Karin and Ergun, Nurettin and Ganster, Maximilian}, title = {Countably $S$-closed spaces}, journal = {Mathematica slovaca}, pages = {337--348}, publisher = {mathdoc}, volume = {44}, number = {3}, year = {1994}, mrnumber = {1307322}, zbl = {0809.54020}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1994__44_3_a4/} }
Dlaska, Karin; Ergun, Nurettin; Ganster, Maximilian. Countably $S$-closed spaces. Mathematica slovaca, Tome 44 (1994) no. 3, pp. 337-348. http://geodesic.mathdoc.fr/item/MASLO_1994__44_3_a4/