TY  - JOUR
AU  - L. P. Lisovik
TI  - Inclusion and ambiguity problems for regular events in semigroups
JO  - Diskretnaya Matematika
PY  - 1993
SP  - 54
EP  - 74
VL  - 5
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DM_1993_5_4_a4/
LA  - ru
ID  - DM_1993_5_4_a4
ER  -