Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_2013_27_1-2_a2, author = {N. Ergun}, title = {Another {Generalization} of {Arhangel'skii's} {Theorem}}, journal = {Mathematica balkanica}, pages = {35}, publisher = {mathdoc}, volume = {27}, number = {1-2}, year = {2013}, url = {http://geodesic.mathdoc.fr/item/MABA_2013_27_1-2_a2/} }
N. Ergun. Another Generalization of Arhangel'skii's Theorem. Mathematica balkanica, Tome 27 (2013) no. 1-2, p. 35. http://geodesic.mathdoc.fr/item/MABA_2013_27_1-2_a2/