TY  - JOUR
AU  - Polák, Libor
TI  - A classification of rational languages by semilattice-ordered monoids
JO  - Archivum mathematicum
PY  - 2004
SP  - 395
EP  - 406
VL  - 40
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ARM_2004__40_4_a7/
LA  - en
ID  - ARM_2004__40_4_a7
ER  -