Media type: E-Article Title: Fr�chet differentiable norms on spaces of countable dimension Contributor: Vanderwerff, Jon Published: Springer Science and Business Media LLC, 1992 Published in: Archiv der Mathematik, 58 (1992) 5, Seite 471-476 Language: English DOI: 10.1007/bf01190117 ISSN: 1420-8938; 0003-889X Origination: Footnote: