TY  - JOUR
AU  - V. M. Levchuk
TI  - Central series and series of commutators of certain subgroups of
JO  - Doklady Akademii Nauk
PY  - 1990
SP  - 799
EP  - 802
VL  - 313
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1990_313_4_a5/
LA  - ru
ID  - DAN_1990_313_4_a5
ER  -