%0 Journal Article %A Jorn B. Olsson %T On the Number of Characters in Blocks of Finite General Linear, Unitary and Symmetric Groups. %J Mathematische Zeitschrift %D 1984 %P 41-48 %V 186 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1984__186_173427/ %F MZ_1984__186_173427