%0 Journal Article %A Ti Xuan %T The average order of $d_{k}(n)$ over integers free of large prime factors %J Acta Arithmetica %D 1990 %P 249-260 %V 55 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-55-3-249-260/ %R 10.4064/aa-55-3-249-260 %G en %F 10_4064_aa_55_3_249_260