TY  - JOUR
TI  - Twelfth Biennial International Seminar of the Canadian Mathematical Congress
JO  - Canadian mathematical bulletin
PY  - 1969
SP  - 256
EP  - 256
VL  - 12
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500030393/
DO  - 10.1017/S0008439500030393
ID  - 10_1017_S0008439500030393
ER  -