TY  - JOUR
AU  - V. V. Borisov
TI  - Simple examples of groups with unsolvable word problem
JO  - Matematičeskie zametki
PY  - 1969
SP  - 521
EP  - 532
VL  - 6
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1969_6_5_a1/
LA  - ru
ID  - MZM_1969_6_5_a1
ER  -