%0 Journal Article
%T Openings in Mathematics
%J Canadian mathematical bulletin
%D 1967
%P 171-172
%V 10
%N 1
%U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500027958/
%R 10.1017/S0008439500027958
%F 10_1017_S0008439500027958