@article{MZ_1984__186_173427,
     author = {Jorn B. Olsson},
     title = {On the {Number} of {Characters} in {Blocks} of {Finite} {General} {Linear,} {Unitary} and {Symmetric} {Groups.}},
     journal = {Mathematische Zeitschrift},
     pages = {41--48},
     publisher = {mathdoc},
     volume = {186},
     year = {1984},
     zbl = {0534.20006},
     url = {http://geodesic.mathdoc.fr/item/MZ_1984__186_173427/}
}