TY  - JOUR
AU  - Whitehead, Jennifer
TI  - On Certain Properties of Subnormal Subgroups
JO  - Canadian journal of mathematics
PY  - 1978
SP  - 573
EP  - 582
VL  - 30
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1978-050-5/
DO  - 10.4153/CJM-1978-050-5
ID  - 10_4153_CJM_1978_050_5
ER  -