%0 Journal Article %A Humphreys, J. F. %T Rational valued and real valued projective characters of finite groups %J Glasgow mathematical journal %D 1980 %P 23-28 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003943/ %R 10.1017/S0017089500003943 %F 10_1017_S0017089500003943