%0 Journal Article
%A Aleksandr Grytczuk
%T An identity involving Ramanujan's sum.
%J Elemente der Mathematik
%D 1981
%P 16-24
%V 36
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ELMA_1981__36_141258/
%F ELMA_1981__36_141258