%0 Journal Article %A Cossey, John %T The Wielandt subgroup of a polycyclic group %J Glasgow mathematical journal %D 1991 %P 231-234 %V 33 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008260/ %R 10.1017/S0017089500008260 %F 10_1017_S0017089500008260