%0 Journal Article %T Index of Volume 56 %J Canadian journal of mathematics %D 2004 %P 1339-1342 %V 56 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2004-058-x/ %R 10.4153/CJM-2004-058-x %F 10_4153_CJM_2004_058_x