%0 Journal Article %A S. S. Marchenkov %T On complexity of solving systems of functional equations in countable-valued logic %J Diskretnyj analiz i issledovanie operacij %D 2015 %P 49-62 %V 22 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DA_2015_22_2_a3/ %G ru %F DA_2015_22_2_a3