%0 Journal Article %A A. P. Semigrodskikh %T Closed Classes Of Ultimately Periodic Functions %J Algebra i logika %D 2001 %P 202-217 %V 40 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_2001_40_2_a5/ %G ru %F AL_2001_40_2_a5