%0 Journal Article
%A Paul Erdös
%A Ian Richards
%T Density Functions for Prime and Relatively Prime Numbers.
%J Monatshefte für Mathematik
%D 1977
%P 99-112
%V 83
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MOMA_1977__83_177803/
%F MOMA_1977__83_177803