%0 Journal Article %A Montgomery, Susan %T Invariant Subgroups in Rings with Involution %J Canadian journal of mathematics %D 1978 %P 350-357 %V 30 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1978-031-x/ %R 10.4153/CJM-1978-031-x %F 10_4153_CJM_1978_031_x