TY  - JOUR
AU  - Nguyen Van Hoa
TI  - On the structure of self-dual closed classes of the three-valued logic~$P_3$
JO  - Diskretnaya Matematika
PY  - 1992
SP  - 82
EP  - 95
VL  - 4
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DM_1992_4_4_a8/
LA  - ru
ID  - DM_1992_4_4_a8
ER  -