TY  - JOUR
AU  - V. S. Guba
TI  - On the relationship between the problems of equality and divisibility of words for semigroups with a~single defining relation
JO  - Izvestiya. Mathematics 
PY  - 1997
SP  - 1137
EP  - 1169
VL  - 61
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1997_61_6_a1/
LA  - en
ID  - IM2_1997_61_6_a1
ER  -