%0 Journal Article %T Index of Volume 53 %J Canadian journal of mathematics %D 2001 %P 1340-1343 %V 53 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2001-048-7/ %R 10.4153/CJM-2001-048-7 %F 10_4153_CJM_2001_048_7