%0 Journal Article %A Frankfurt, Richard %T Quasicyclic Subnormal Semigroups %J Canadian journal of mathematics %D 1977 %P 1230-1246 %V 29 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-123-3/ %R 10.4153/CJM-1977-123-3 %F 10_4153_CJM_1977_123_3