Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{JRAM_1973__258_151282, author = {Bruno Ernst}, title = {Ultra-(DF)-R\"aume.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {87--102}, publisher = {mathdoc}, volume = {258}, year = {1973}, language = {de}, url = {http://geodesic.mathdoc.fr/item/JRAM_1973__258_151282/} }
Bruno Ernst. Ultra-(DF)-Räume.. Journal für die reine und angewandte Mathematik, Tome 258 (1973), pp. 87-102. http://geodesic.mathdoc.fr/item/JRAM_1973__258_151282/