%0 Journal Article %A Jan-Christoph Schlage-Puchta %T The irrationality of some number theoretical series %J Acta Arithmetica %D 2007 %P 295-303 %V 126 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa126-4-1/ %R 10.4064/aa126-4-1 %G en %F 10_4064_aa126_4_1