TY  - JOUR
AU  - T. M. Kuz'mina
TI  - Generalized semilattices and ${\rm m}$-degrees of index
JO  - Algebra i logika
PY  - 1989
SP  - 555
EP  - 569
VL  - 28
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1989_28_5_a5/
LA  - ru
ID  - AL_1989_28_5_a5
ER  -