%0 Journal Article
%A Luca, Florian
%T On the distribution of perfect totients
%J Journal of integer sequences
%D 2006
%V 9
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JIS_2006__9_4_a2/
%G en
%F JIS_2006__9_4_a2