TY  - JOUR
AU  - Yu. Ya. Breitbart
TI  - Essential variables of functions of the algebra of logic
JO  - Doklady Akademii Nauk
PY  - 1967
SP  - 9
EP  - 10
VL  - 172
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1967_172_1_a0/
LA  - ru
ID  - DAN_1967_172_1_a0
ER  -