%0 Journal Article %T Nato Summer School on ‘Contemporary Methods of Discrete Mathematics’ %J Canadian mathematical bulletin %D 1966 %P 140-140 %V 9 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500027582/ %R 10.1017/S0008439500027582 %F 10_1017_S0008439500027582