TY  - JOUR
AU  - Yu. Sh. Gurevich
TI  - The problem of equality of words for certain classes of
JO  - Algebra i logika
PY  - 1966
SP  - 25
EP  - 35
VL  - 5
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1966_5_5_a1/
LA  - ru
ID  - AL_1966_5_5_a1
ER  -