%0 Journal Article %A Eckford Cohen %T The Average Order of Certain Types of Arithmetical Functions: Generalized k-free Numbers and Totient Points. %J Monatshefte für Mathematik %D 1960 %P 251-262 %V 64 %I mathdoc %U http://geodesic.mathdoc.fr/item/MOMA_1960__64_177100/ %F MOMA_1960__64_177100