McGregor, C. M. Finite-dimensional normed linear spaces with numerical index 1. (English) Zbl 0212.14304 J. Lond. Math. Soc., II. Ser. 3, 717-721 (1971). MSC: 46B20 46B10 PDF BibTeX XML Cite \textit{C. M. McGregor}, J. Lond. Math. Soc., II. Ser. 3, 717--721 (1971; Zbl 0212.14304) Full Text: DOI
Duncan, J.; McGregor, C. M.; Pryce, J. D.; White, A. J. The numerical index of a normed space. (English) Zbl 0197.10402 J. Lond. Math. Soc., II. Ser. 2, 481-488 (1970). PDF BibTeX XML Cite \textit{J. Duncan} et al., J. Lond. Math. Soc., II. Ser. 2, 481--488 (1970; Zbl 0197.10402) Full Text: DOI