TY  - JOUR
TI  - Problems for Solution
JO  - Canadian mathematical bulletin
PY  - 1969
SP  - 91
EP  - 91
VL  - 12
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S000843950002988X/
DO  - 10.1017/S000843950002988X
ID  - 10_1017_S000843950002988X
ER  -