TY  - JOUR
AU  - D. M. Smirnov
TI  - On reduced free multi-operator groups
JO  - Doklady Akademii Nauk
PY  - 1963
SP  - 44
EP  - 47
VL  - 150
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1963_150_1_a10/
LA  - ru
ID  - DAN_1963_150_1_a10
ER  -