TY  - JOUR
AU  - E. Ya. Markushina
TI  - Universal central extensions of groups of special automorphisms of free groups
JO  - Matematičeskie zametki
PY  - 1990
SP  - 46
EP  - 54
VL  - 47
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1990_47_4_a6/
LA  - ru
ID  - MZM_1990_47_4_a6
ER  -