Levin, B. Ya. On a generalization of the Fejer-Riesz theorem. (English) Zbl 0063.03516 C. R. (Dokl.) Acad. Sci. URSS, n. Ser. 52, 291-294 (1946). Not reviewed Cited in 1 ReviewCited in 2 Documents PDFBibTeX XMLCite \textit{B. Ya. Levin}, C. R. (Dokl.) Acad. Sci. URSS, n. Ser. 52, 291--294 (1946; Zbl 0063.03516)