TY  - JOUR
AU  - I. R. Shafarevich
TI  - Factors of a descending central series
JO  - Matematičeskie zametki
PY  - 1989
SP  - 114
EP  - 117
VL  - 45
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1989_45_3_a12/
LA  - ru
ID  - MZM_1989_45_3_a12
ER  -