%0 Journal Article %T Symposium in Analysis - June 16-17, 1967 %J Canadian mathematical bulletin %D 1967 %P 331-332 %V 10 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500028265/ %R 10.1017/S0008439500028265 %F 10_1017_S0008439500028265