TY  - JOUR
TI  - Index of volume 42
JO  - Canadian mathematical bulletin
PY  - 1999
SP  - 507
EP  - 511
VL  - 42
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1999-058-x/
DO  - 10.4153/CMB-1999-058-x
ID  - 10_4153_CMB_1999_058_x
ER  -