%0 Journal Article %A Bashir, M. A. %T Notice of Retraction %J Canadian mathematical bulletin %D 1991 %P 294-294 %V 34 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1991-047-2/ %R 10.4153/CMB-1991-047-2 %F 10_4153_CMB_1991_047_2