%0 Journal Article %A Jeffrey Lagarias %T On a positivity property of the Riemann ΞΎ-function %J Acta Arithmetica %D 1999 %P 217-234 %V 89 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-89-3-217-234/ %R 10.4064/aa-89-3-217-234 %G en %F 10_4064_aa_89_3_217_234