TY  - JOUR
TI  - Index of Volume 50
JO  - Canadian mathematical bulletin
PY  - 2007
SP  - 637
EP  - 640
VL  - 50
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2007-063-8/
DO  - 10.4153/CMB-2007-063-8
ID  - 10_4153_CMB_2007_063_8
ER  -