TY  - JOUR
AU  - Nguyen Van Hoa
TI  - Families of closed classes of $k$-valued logic that are preserved by all automorphisms
JO  - Diskretnaya Matematika
PY  - 1993
SP  - 87
EP  - 108
VL  - 5
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DM_1993_5_4_a6/
LA  - ru
ID  - DM_1993_5_4_a6
ER  -