TY  - JOUR
AU  - Everett C. Dade
TI  - Normal Subgroups of M-Groups Need Not Be M-Groups.
JO  - Mathematische Zeitschrift
PY  - 1973
SP  - 313
EP  - 318
VL  - 133
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1973__133_171961/
ID  - MZ_1973__133_171961
ER  -