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Hawkins, Thomas Weierstraß and the theory of matrices. (English) Zbl 0359.01017 Arch. Hist. Exact Sci. 17, 119-163 (1977). MSC: 01A55 15-03 15A21 PDF BibTeX XML Cite \textit{T. Hawkins}, Arch. Hist. Exact Sci. 17, 119--163 (1977; Zbl 0359.01017) Full Text: DOI
Cordes, Heinz Otto Separation der Variablen in Hilbertschen Räumen. (German) Zbl 0050.11801 Math. Ann. 125, 401-434 (1953). PDF BibTeX XML Cite \textit{H. O. Cordes}, Math. Ann. 125, 401--434 (1953; Zbl 0050.11801) Full Text: DOI EuDML
Hilb, E. Über Integraldarstellung willkürlicher Funktionen. (German) JFM 39.0405.01 Math. Ann. 66, 1-66 (1909); auch sep. als Habilitationsschrift Erlangen (1909). Reviewer: Hellinger, Dr. (Marburg) PDF BibTeX XML Cite \textit{E. Hilb}, Math. Ann. 66, 1--66 (1909; JFM 39.0405.01) Full Text: DOI EuDML