%0 Journal Article %A Smith, Howard %T On torsion-free hypercentral groups with all subgroups subnormal %J Glasgow mathematical journal %D 1989 %P 193-194 %V 31 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007734/ %R 10.1017/S0017089500007734 %F 10_1017_S0017089500007734