%0 Journal Article
%T Problems for Solution
%J Canadian mathematical bulletin
%D 1972
%P 311-314
%V 15
%N 2
%U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500031556/
%R 10.1017/S0008439500031556
%F 10_1017_S0008439500031556