%0 Journal Article %T Index of Volume 50 %J Canadian mathematical bulletin %D 2007 %P 637-640 %V 50 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2007-063-8/ %R 10.4153/CMB-2007-063-8 %F 10_4153_CMB_2007_063_8