TY - JOUR AU - S. S. Marchenkov TI - The closure operator in many-valued logic based on functional equations JO - Diskretnyj analiz i issledovanie operacij PY - 2010 SP - 18 EP - 31 VL - 17 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DA_2010_17_4_a1/ LA - ru ID - DA_2010_17_4_a1 ER -