TY  - JOUR
AU  - V. V. Uspenskii
TI  - Subgroups of free topological groups
JO  - Doklady Akademii Nauk
PY  - 1985
SP  - 1070
EP  - 1072
VL  - 285
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1985_285_5_a11/
LA  - ru
ID  - DAN_1985_285_5_a11
ER  -