TY  - JOUR
AU  - A. V. Lavrenov
TI  - Unitary Steinberg group is centrally closed
JO  - Algebra i analiz
PY  - 2012
SP  - 124
EP  - 140
VL  - 24
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AA_2012_24_5_a4/
LA  - ru
ID  - AA_2012_24_5_a4
ER  -