%0 Journal Article %A A.V. Kelarev %T A simple matrix semigroup which is not completely simple. %J Semigroup forum %D 1988 %P 123-126 %V 37 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1988__37_1_134920/ %F SF_1988__37_1_134920