%0 Journal Article %A S. N. Preobrazhenskii %T Periodic Boolean functions and a lower bound for the complexity of operators %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2003 %P 25-28 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2003_2_a5/ %G ru %F VMUMM_2003_2_a5