Singer, I. (1974). The theory of best approximation and functional analysis. Society for Industrial and Applied Mathematics.
Cita Chicago (17th ed.)Singer, Ivan. The Theory of Best Approximation and Functional Analysis. Philadelphia: Society for Industrial and Applied Mathematics, 1974.
Cita MLA (8th ed.)Singer, Ivan. The Theory of Best Approximation and Functional Analysis. Society for Industrial and Applied Mathematics, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.