%0 Journal Article %A T. Hessami Pilehrood %A Kh. Hessami Pilehrood %T Rational Approximations to Values of the Digamma Function and a Conjecture on Denominators %J Matematičeskie zametki %D 2011 %P 744-763 %V 90 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2011_90_5_a9/ %G ru %F MZM_2011_90_5_a9