Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{DEME_1993__35_a0, author = {A. Joanovic΄ and Z. Mijajlovic΄}, title = {On weak {Normality} and {Selectivity} of {Ultrafilters}}, journal = {\ensuremath{\Delta}\ensuremath{\varepsilon}\ensuremath{\lambda}\ensuremath{\tau}\ensuremath{\acute\iota}o \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} E\ensuremath{\lambda}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\nu}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma} M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma} E\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\iota}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\alpha}\ensuremath{\varsigma} }, pages = {3-10}, publisher = {mathdoc}, volume = {35}, year = {1993}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/DEME_1993__35_a0/} }
A. Joanovic΄; Z. Mijajlovic΄. On weak Normality and Selectivity of Ultrafilters. Δελτίο της Ελληνικής Μαθηματικής Εταιρίας , Tome 35 (1993), p. 3-10. http://geodesic.mathdoc.fr/item/DEME_1993__35_a0/