TY  - JOUR
AU  - V. G. Sokolov
TI  - An analogue of Witt's formula for free solvable groups
JO  - Algebra i logika
PY  - 1969
SP  - 367
EP  - 372
VL  - 8
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1969_8_3_a7/
LA  - ru
ID  - AL_1969_8_3_a7
ER  -