TY  - JOUR
TI  - Problem for Solution
JO  - Canadian mathematical bulletin
PY  - 1969
SP  - 682
EP  - 683
VL  - 12
IS  - 5
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500030927/
DO  - 10.1017/S0008439500030927
ID  - 10_1017_S0008439500030927
ER  -