TY  - JOUR
TI  - Thesis Abstract
JO  - Canadian mathematical bulletin
PY  - 1969
SP  - 255
EP  - 255
VL  - 12
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500030381/
DO  - 10.1017/S0008439500030381
ID  - 10_1017_S0008439500030381
ER  -