TY  - JOUR
AU  - Duff, G. F. D.
TI  - In Memoriam
JO  - Canadian journal of mathematics
PY  - 1993
SP  - 3
EP  - 5
VL  - 45
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1993-001-1/
DO  - 10.4153/CJM-1993-001-1
ID  - 10_4153_CJM_1993_001_1
ER  -