%0 Journal Article %A Manuel VALDIVIA %T A Class of Bornological Barrelled Spaces which Are not Ultrabornological. %J Mathematische Annalen %D 1971 %P 43-51 %V 194 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1971__194_162185/ %F MAN_1971__194_162185