TY  - JOUR
AU  - Hanna Neumann
TI  - On varieties of groups and their associated near-rings.
JO  - Mathematische Zeitschrift
PY  - 1956
SP  - 36
EP  - 69
VL  - 65
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1956__65_169585/
ID  - MZ_1956__65_169585
ER  -