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1 - Complete normed algebras
Bonsall, Frank Featherstone (1920-2011)   /   Duncan, John (1938-....)

Cote : [42 BON 73]

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2 - Numerical ranges of operators on normed spaces and elements of normed algebras
Bonsall, Frank Featherstone (1920-2011)   /   Duncan, John (1938-....)

Cote : [42 BON 71]