TY  - JOUR
TI  - CJM volume 71 Issue 4 Cover and Front matter
JO  - Canadian journal of mathematics
PY  - 2019
SP  - f1
EP  - f2
VL  - 71
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/S0008414X1900035X/
DO  - 10.4153/S0008414X1900035X
ID  - 10_4153_S0008414X1900035X
ER  -