TY  - JOUR
AU  - Frank Levin
TI  - On Some Varieties of Soluble Groups. II.
JO  - Mathematische Zeitschrift
PY  - 1968
SP  - 162
EP  - 172
VL  - 103
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1968__103_170907/
ID  - MZ_1968__103_170907
ER  -