TY  - JOUR
AU  - V. V. Vishin
TI  - Identity transformations in a four-valued logic
JO  - Doklady Akademii Nauk
PY  - 1963
SP  - 719
EP  - 721
VL  - 150
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1963_150_4_a2/
LA  - ru
ID  - DAN_1963_150_4_a2
ER  -