van Kampen, E. R. On almost periodic functions of constant absolute value. (English) Zbl 0016.30402 J. Lond. Math. Soc. 12, 3-6 (1937). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 9 Documents Keywords:Dirichlet series, almost periodic functions PDFBibTeX XMLCite \textit{E. R. van Kampen}, J. Lond. Math. Soc. 12, 3--6 (1937; Zbl 0016.30402) Full Text: DOI