TY  - JOUR
AU  - Frank Levin
TI  - On some varieties of soluble.
JO  - Mathematische Zeitschrift
PY  - 1964
SP  - 369
EP  - 372
VL  - 85
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1964__85_170310/
ID  - MZ_1964__85_170310
ER  -