%0 Journal Article
%T On A theorem of Niven
%J Canadian mathematical bulletin
%D 1974
%P 109-110
%V 17
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1974-019-5/
%R 10.4153/CMB-1974-019-5
%F 10_4153_CMB_1974_019_5