TY  - JOUR
AU  - R. I. Grigorchuk
TI  - On a problem of day on nonelementary amenable groups in the class of finitely defined groups
JO  - Matematičeskie zametki
PY  - 1996
SP  - 774
EP  - 775
VL  - 60
IS  - 5
UR  - http://geodesic.mathdoc.fr/item/MZM_1996_60_5_a12/
LA  - ru
ID  - MZM_1996_60_5_a12
ER  -