Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1971__12_4_a13, author = {Dane\v{s}, Josef}, title = {On norms and subsets of linear spaces}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {835--844}, publisher = {mathdoc}, volume = {12}, number = {4}, year = {1971}, mrnumber = {0301485}, zbl = {0225.46019}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1971__12_4_a13/} }
Daneš, Josef. On norms and subsets of linear spaces. Commentationes Mathematicae Universitatis Carolinae, Tome 12 (1971) no. 4, pp. 835-844. http://geodesic.mathdoc.fr/item/CMUC_1971__12_4_a13/