TY  - JOUR
AU  - N. T. Kogabaev
TI  - Complexity of the problem of being equivalent to Horn formulas
JO  - Algebra i logika
PY  - 2021
SP  - 575
EP  - 586
VL  - 60
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_2021_60_6_a4/
LA  - ru
ID  - AL_2021_60_6_a4
ER  -