%0 Journal Article %A Horst Alzer %A Christian Berg %T Some classes of completely monotonic functions %J Annales Fennici Mathematici %D 2002 %P 445-460 %V 27 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AFM_2002_27_2_a13/ %G en %F AFM_2002_27_2_a13