Bonsall, F. F., & Duncan, J. Numerical ranges of operators on normal spaces and of elements of Normed Algebras.
シカゴスタイル引用形Bonsall, F F., , J. Duncan. Numerical Ranges of Operators on Normal Spaces and of Elements of Normed Algebras. New York, Cambridge at the University Press.
MLA引用形式Bonsall, F F., , J. Duncan. Numerical Ranges of Operators on Normal Spaces and of Elements of Normed Algebras.
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