%0 Journal Article %A Jean-Marie De Koninck %A Nicolas Doyon %A Imre Kátai %T On the counting function for the Niven numbers %J Acta Arithmetica %D 2003 %P 265-275 %V 106 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa106-3-5/ %R 10.4064/aa106-3-5 %G en %F 10_4064_aa106_3_5